MEMORANDUM OPINION
BERYL A. HOWELL, District Judge.This is a products liability case involving allegations that the defendant’s automobile brakes, containing ehrysotile asbestos fibers, caused the decedent’s lung cancer.1 This ease is set for trial on May 20, 2013, and among the thirty pre-trial motions filed is a motion to reconsider the denial of the defendant’s motion for summary judgment.2 See Def.’s Mot. for Recons., ECF No. 49. The primary basis for that motion is the intervening decision in Ford Motor Co. v. Boomer, 285 Va. 141, 736 S.E.2d 724 (2013), in which the Supreme Court of Virginia abrogated the “substantial contributing factor” test as an appropriate articulation of proximate cause under Virginia tort law. See Def.’s Mem. Supp. Mot. for Recons. (“Def.’s Recons. Mem.”) at 1, 14, ECF No. 49-1. In opposition to the defendant’s motion for reconsideration, the plaintiff submitted a revised expert report, which the plaintiff argued creates a genuine issue of material fact for trial on causation. The defendant subsequently moved to strike that declaration on a number of grounds. For the reasons explained below, the Court grants both motions of the defendant to strike the revised expert report and for summary judgment in its favor.
I. BACKGROUND
An exhaustive recitation of the factual background of this case is not necessary to understand the Court’s reasoning on the two motions considered in this opinion. Therefore, the Court will limit its summary of the background to the facts bearing on those two motions.
*28As referenced above, the decedent died on July 28, 2010 from malignant pleural meso-thelioma—a form of lung cancer. See Am. Joint Pretrial Statement (“Pretrial Statement”) at 2, ECF No. 133. The plaintiff claims that the decedent’s lung cancer was caused by exposure to ehrysotile asbestos fibers contained in automobile brakes manufactured by Bendix Corporation.3 Id. As the defendant concedes “it is undisputed that ... [the decedent] performed shade tree automobile repairs, which to some extent included brake repairs.” Def.’s Recons. Mem. at 2. The term “shade tree automobile repairs” refers to the fact that, although he was not licensed as a mechanic, the decedent “did work on automobiles for [himself], [his] family and the neighborhood whenever they asked [him] to do it,” which included “changing batteries, changing starter motors, generators, alternators, tires and brakes.” Def.’s Reeons. Mem. Ex. B (“Tyler Dep.”) at 399:1-8, 400:3-5, ECF No. 49-3. The parties dispute the precise extent to which the decedent was exposed to asbestos fibers from Bendix brakes, though the decedent testified in his de benne esse deposition that he filed and beveled “hundreds and hundreds” of Bendix brake shoes in his lifetime. See id. at 416:13. The decedent further testified that he customarily used Bendix brakes, and he would ask for Bendix brakes by name “because [he] liked their product.” See id. at 413:10-19.
Both before and during his “shade tree mechanic” work, the decedent was also exposed to asbestos when he served in the Navy and when he worked as a trades helper at Fort Belvoir in Fairfax County, Virginia. See Def.’s Recons. Mem. at 3-9. In fact, the plaintiff not only concedes that the decedent was exposed to asbestos in the Navy, but he also concedes that “[the decedent]’s exposure to asbestos during his Naval service caused his mesothelioma.” See PL’s Mot. to File Second Am. Joint Pretrial Statement at 1, ECF No. 135. In light of the decedent’s Naval and Fort Belvoir asbestos exposure, there are at least three potential causes of the decedent’s cancer: the Naval exposure, the Fort Belvoir exposure, and the Bendix brake exposure.
The decedent and his wife originally filed this lawsuit on December 31, 2009 in D.C. Superior Court against thirty-six separate defendants. See Notice of Removal at 1-7, ECF No. 1. The case was removed to this Court on March 3, 2010, see id., and on June 23, 2011, the case was transferred to the Eastern District of Pennsylvania (the “MDL Court”) by the Judicial Panel on Multidistrict Litigation for coordinated pretrial proceedings, see Conditional Transfer Order at 1, ECF No. 43. On November 5, 2012, after the conclusion of all pretrial proceedings, the case was remanded to this Court for trial. See Conditional Remand Order at 1, ECF No. 44. By that time, the only remaining viable defendants for trial were John Crane, Inc. and Honeywell International, Inc. (“Honeywell”). See Suggestion of Remand at 2, ECF No. 44-3.4 While this case was pending in the MDL Court, the defendant moved for summary judgment on the plaintiffs claims. See Def.’s Recons. Mem. Ex. M at 1, ECF No. 49-14. In denying that motion, the MDL Court cited the decedent’s deposition testimony as well as the testimony of the plaintiffs experts “that [the decedent’s exposure to Bendix brakes [was] a substantial cause of his mesothelioma.” Id. at 4. Specifically, the MDL Court cited the testimony of Dr. Steven Markowitz, who opined that the decedent’s exposure to Bendix brakes “ ‘was significant and contributed to his over-all exposure, [and] that his meso-thelioma was caused by his cumulative exposure to asbestos.’ ” Id. (quoting PL’s Resp. to Honeywell’s Mot. for Summ. J. at 12). In the end, the MDL Court denied summary judgment to the defendant because “Plaintiff has raised a genuine issue of fact as to whether Honeywell’s products, specifically, *29were a substantial contributing factor in causing Decedent’s injuries.” Id.
On January 10, 2013, however, after this ease was remanded to this Court, the Virginia Supreme Court decided Boomer. That ease was an appeal “of a jury verdict against Honeywell International Incorporated and Ford Motor Company for the wrongful death of James D. Lokey, caused by mesothelioma resulting from exposure to asbestos in dust from Bendix brakes installed in Ford and other vehicles.” Boomer, 736 S.E.2d at 726. The similarity between Boomer and the instant case is therefore self-evident. In Boomer, the trial court “on five occasions instructed the jury to determine whether [the defendants’] negligence was a ‘substantial contributing factor’ to Lokey’s mesotheli-oma,” and the defendants challenged that instruction as contrary to Virginia law. Id. at 727-28. The Virginia Supreme Court, “[considering it ... for the first time,” rejected the “substantial contributing factor” instruction primarily because “a reasonable juror could be confused as to the quantum of evidence required to prove causation in the face of both a substantial contributing factor and a proximate cause instruction.” Id. at 730. Nevertheless, the court also held, in agreement with a prior line of Virginia precedent, that a plaintiff could still recover from a defendant in a multiple-exposure asbestos case if the plaintiff could prove “that a negligent [asbestos] exposure was more likely than not sufficient to have triggered the harm.” Id. at 731 (emphasis in original).
On January 28, 2013—less than three weeks after Boomer was decided—the defendant filed a motion to reconsider the denial of its motion for summary judgment in light of Boomer. See Def.’s Mot. for Reeons. In that motion, the defendant argued that summary judgment is appropriate in light of Boomer because the plaintiff “has failed to provide any specific evidence that [the deeedent]’s alleged exposure to Bendix brakes ... was a sufficient cause of his injury.” Def.’s Reeons. Mem. at 17. On this same point, the defendant argued that “Plaintiff’s own experts contend that [the deeedent]’s exposure to Bendix brakes was merely part of his cumulative exposure to asbestos and cause of [the decedentj’s disease.” Id. After reviewing the testimony and opinions of the plaintiffs experts—in particular Dr. Markowitz, the plaintiffs primary causation expert—the defendant argued that “Plaintiff has not offered expert evidence to opine that [the decedentj’s alleged lifetime dosage is more likely than not a sufficient cause of his mesothelioma” and “Plaintiff has offered no evidence to quantify [the decedent]’s exposure to Bendix brakes.” Id. at 19 (emphasis in original). In light of Boomer and these perceived deficiencies in the plaintiffs evidence, the defendant contended that the plaintiff “cannot create a genuine issue of material fact regarding any alleged liability of Honeywell.” Id. at 20.
In opposing the defendant’s motion for reconsideration, the plaintiff made several arguments, some of which will be discussed in more detail below. Importantly, one of the plaintiffs arguments was that “[e]xpert testimony demonstrates that the exposure to Bendix brake dust described by [the decedent] is sufficient to cause [the deeedent]’s mesothelioma.” Pl.’s Opp’n to Def.’s Mot. for Reeons. (“Pl.’s Reeons. Opp’n”) at 7, ECF No. 53. This statement was based on a declaration by Dr. Markowitz, completed on February 8, 2013, after the defendant had filed its motion for reconsideration. See id. In that new declaration, Dr. Markowitz offered four “additional opinions,” one of which was that “[the deeedent]’s exposure to asbestos from Bendix asbestos-containing brake lining—as well as the non-friction exposures identified in my report of November 22, 2011 [sic] (Naval and Fort Belvoir exposures)— are each independently sufficient to cause mesothelioma in and of themselves.” Pl.’s Reeons. Opp’n Ex. 3 (“Markowitz Deck”), at 5-6, ECF No. 53-3 (emphasis added). Dr. Markowitz had never before opined that the decedent’s exposure to Bendix brakes was independently sufficient to have caused his cancer. The plaintiff, in his opposition, also pointed to the deposition testimony of the plaintiffs pathology expert, Dr. Jerrold Abraham, who opined that “if [the decedent] had only that [Navy exposure], that would have been the only cause. If he had other exposures \i.e., brake exposures] and not that [Navy exposure], those [brake exposures] would have been the only cause.” See Pl.’s *30Recons. Opp’n at 8 (internal quotation marks omitted) (quoting Ex. 5 (“Abraham Dep.”), at 135-37, ECF No. 53-5).
In response to the submission of the February 8, 2013 Markowitz Declaration, the defendant filed a motion to strike the declaration as both untimely and inconsistent with Dr. Markowitz’s prior opinions. See Def.’s Reply to Pl.’s Opp’n to Def.’s Mot. for Recons. & Mot. to Strike Deck of Dr. Steven Markowitz (“Def.’s Strike Mem.”) at 2-5, ECF No. 57. Specifically, the defendant argued that (1) the Markowitz Declaration is untimely under Federal Rules of Civil Procedure 26 and 37; and (2) the Markowitz Declaration constitutes a “sham affidavit” because it contradicts his prior sworn statements. See id. at 4. In the alternative, the defendant also contended that the new Mar-kowitz Declaration “does not satisfy the standard under Boomer” because it “lacks any support as to the level of exposure [the decedent] allegedly experienced or that this particular level of exposure was sufficient to cause mesothelioma.” Id. at 9.
Upon consideration of this briefing, the Court directed the parties to file supplemental briefing on May 1, 2013 to clarify a variety of questions relating to the motion for reconsideration and the motion to strike. See Order dated Apr. 25, 2013, ECF No. 144; see also Def.’s Supplemental Briefing, ECF No. 149; Pl.’s Supplemental Briefing, ECF No. 150. Additionally, on May 3, 2013, the Court heard oral argument on both motions during the pretrial conference in this matter. After this extensive briefing and oral argument, the Court must now consider the proper disposition of the defendant’s motion for reconsideration and motion to strike. As discussed below, the Court grants both motions.
II. LEGAL STANDARDS
A. Amending Interlocutory Decisions
“Denial of a summary judgment motion is an interlocutory order” and “[district courts have discretion to entertain successive summary judgment motions on the same (or different) grounds.” 3 William W. Schwar-zer et al., Federal Civil Procedure Before Trial § 14:367 (2013) (emphasis in original). Indeed, a district court may revise any of its interlocutory decisions “at any time before the entry of a judgment adjudicating all the claims and all the parties’ rights and liabilities.” Fed.R.Civ.P. 54(b); accord Langevine v. District of Columbia, 106 F.3d 1018, 1023 (D.C.Cir.1997) (“Interlocutory orders are not subject to the law of the case doctrine and may always be reconsidered prior to final judgment.”). Rule 54(b) “recognizes [the district court’s] inherent power to reconsider an interlocutory order ‘as justice requires.’” Capitol Sprinkler Inspection, Inc. v. Guest Servs., Inc., 630 F.3d 217, 227 (D.C.Cir.2011) (quoting Greene v. Union Mut. Life Ins. Co. of Am., 764 F.2d 19, 22-23 (1st Cir.1985)). To determine whether “justice requires” reconsideration, a court may consider, among other possible grounds, whether “a controlling or significant change in the law or facts has occurred since the submission of the issue to the court.” Act Now to Stop War & End Racism Coal. v. District of Columbia (“Act Now”), 286 F.R.D. 117, 125 (D.D.C. 2012) (quoting Estate of Botvin ex rel. Ellis v. Islamic Republic of Iran, 772 F.Supp.2d 218, 223 (D.D.C.2011)).
“Importantly, the standard for reconsideration of interlocutory orders under Rule 54(b) is distinct from the standard applicable to motions for reconsideration of final judgments.” Cobell v. Norton, 224 F.R.D. 266, 272 (D.D.C.2004). Despite the imprecision of the “as justice requires” standard, “it is clear that ‘courts have more flexibility in applying Rule 54(b)’ than in determining whether reconsideration is appropriate under Rules 59(e) and 60(b).” Id. (quoting Moore v. Hartman, 332 F.Supp.2d 252, 256 (D.D.C. 2004)). The considerations embedded in the “as justice requires” standard “leave a great deal of room for the court’s discretion and, accordingly, the ‘as justice requires’ standard amounts to determining ‘whether [relief upon] reconsideration is necessary under the relevant circumstances.’ ” Elec. Privacy Info. Ctr. v. U.S. Dep’t of Homeland Sec., 811 F.Supp.2d 216, 224 (D.D.C.2011) (quoting Co-bell, 224 F.R.D. at 272). Despite the potential breadth of the “as justice requires” standard, “the court’s discretion under Rule 54(b) is ... ‘subject to the caveat that, where *31litigants have once battled for the court’s decision, they should neither be required, nor without good reason permitted, to battle for it again.’” Id. (quoting Singh v. George Wash. Univ., 383 F.Supp.2d 99, 101 (D.D.C. 2005)); see also 3 Schwarzer et al., Federal Civil Procedure Before Trial § 14:368 (successive summary judgment motion that “presents no new material facts or legal arguments ... may even be treated as a ‘bad faith’ motion, exposing the moving party to sanctions under FRCP 56(h)” (emphasis omitted)).
B. Summary Judgment
Federal Rule of Civil Procedure 56 provides that summary judgment shall be granted “if the movant shows that there is no genuine dispute as to any material fact and the movant is entitled to judgment as a matter of law.” Fed.R.Civ.P. 56(a). Summary judgment is properly granted against a party who, “after adequate time for discovery and upon motion, ... fails to make a showing sufficient to establish the existence of an element essential to that party’s ease, and on which that party will bear the burden of proof at trial.” Celotex Corp. v. Catrett, 477 U.S. 317, 322, 106 S.Ct. 2548, 91 L.Ed.2d 265 (1986). The burden is on the moving party to demonstrate that there is an “absence of a genuine issue of material fact” in dispute. Id. at 323,106 S.Ct. 2548.
In ruling on a motion for summary judgment, the Court must draw all justifiable inferences in favor of the nonmoving party and shall accept the nonmoving party’s evidence as true. Anderson v. Liberty Lobby, Inc., 477 U.S. 242, 255, 106 S.Ct. 2505, 91 L.Ed.2d 202 (1986). For a factual dispute to be “genuine,” the nonmoving party must establish more than “[t]he mere existence of a scintilla of evidence in support of [its] position,” id. at 252, 106 S.Ct. 2505 and cannot rely on “mere allegations” or conelusory statements, see Veitch v. England, 471 F.3d 124, 134 (D.C.Cir.2006); Greene v. Dalton, 164 F.3d 671, 675 (D.C.Cir.1999); Harding v. Gray, 9 F.3d 150, 154 (D.C.Cir.1993); accord Fed.R.Civ.P. 56(e). Rather, the nonmoving party must present specific facts that would enable a reasonable jury to find in its favor. See, e.g., Fed.R.Civ.P. 56(c)(1). “If the evidence is merely colorable, or is not significantly probative, summary judgment may be granted.” Liberty Lobby, All U.S. at 249-50, 106 S.Ct. 2505 (citations omitted). “[A] complete failure of proof concerning an essential element of the nonmoving party’s case necessarily renders all other facts immaterial.” Celotex, All U.S. at 323, 106 S.Ct. 2548. In that situation, “[t]he moving party is ‘entitled to a judgment as a matter of law1 because the nonmoving party has failed to make a sufficient showing on an essential element of her case with respect to which she has the burden of proof.” Id.
III. DISCUSSION
Before addressing the merits of either motion, the Court will first discuss two procedural issues raised by the plaintiff with respect to the motion for reconsideration. Next, the Court will discuss the merits of the defendant’s motion to strike, since the resolution of that motion bears upon the merits of the motion for reconsideration. Finally, the Court will address the merits of the motion for reconsideration.
A. The Motion for Reconsideration Is Procedurally Sound.
In his opposition to the defendant’s motion for reconsideration, the plaintiff contends that the “motion is procedurally defective for two reasons.” Pl.’s Reeons. Opp’n at 2. First, the plaintiff argues that “Honeywell’s twenty-two (22) page Memorandum of Law exceeds this Court’s explicit direction that motions for reconsideration ‘may not exceed 10 pages in length.’ ” Id. at 2-3 (quoting Supplemental Standing Order ¶ 7, ECF No. 45). This argument, however, mispereeives the Court’s directive. The Court’s Standing Order states that “[m]otions to alter or amend a judgment____shall be filed only when the requirements of Federal Rules of Civil Procedure 59(c) and/or 60(b) are met” and “[s]uch motions and oppositions thereto may not exceed 10 pages in length.” Supplemental Standing Order ¶ 7. Although this portion of the Court’s Standing Order correctly states that motions to alter or amend a judgment are “commonly known as *32‘motions for reconsideration,’ ” see id., a motion to reconsider under Rule 54(b) is not a motion to alter or amend a judgment. A “judgment,” as that term is used throughout the Federal Rules (including in Rules 59(e) and 60(b)), “includes a decree and any order from which an appeal lies,” see Fed.R.Civ.P. 54(a), which would necessarily not include an interlocutory order (such as an order denying a motion for summary judgment). Indeed, Rule 54(b) makes clear the distinction between an interlocutory order and a judgment, providing that “any order or other decision ... that adjudicates fewer than all the claims or the rights and liabilities of fewer than all the parties does not end the action as to any of the claims or parties and may be revised at any time before the entry of judgment.” Fed.R.Civ.P. 54(b) (emphasis added). Therefore, the page limitations that the Court applies to motions to alter or amend a judgment do not apply to the defendant’s instant motion for reconsideration under Rule 54(b).
Second, the plaintiff contends that “Honeywell’s motion is almost two years too late.” Pl.’s Recons. Opp’n at 3. The premise for this assertion is that “Honeywell’s only excuse for filing this motion so late is that there was an ‘intervening change in law.’” Id. (quoting Def.’s Reeons. Mem. at 14). This argument by the plaintiff, however, suffers from the same misperception that doomed his other procedural argument: The plaintiff confuses the defendant’s Rule 54(b) motion—which may be filed “at any time before the entry of a judgment,” see Fed. R.Civ.P. 54(b)—for a Rule 59(e) motion to alter or amend a judgment, which “must be filed no later than 28 days after the entry of the judgment,” Fed.R.Civ.P. 59(e). The plaintiff is correct that if the defendant had filed a motion to alter or amend a judgment pursuant to Rule 59(e), the Court would not need to grant it “unless [it] finds that there is an intervening change of controlling of law, the availability of new evidence, or the need to correct a clear error or prevent manifest injustice.” Firestone v. Firestone, 76 F.3d 1205, 1208 (D.C.Cir.1996) (internal quotation marks omitted). As discussed above, however, “the standard for reconsideration of interlocutory orders under Rule 54(b) is distinct from the standard applicable to motions for reconsideration of final judgments” in that “it is clear that courts have more flexibility in applying Rule 54(b) than in determining whether reconsideration is appropriate under Rules 59(e) and 60(b).” Cobell, 224 F.R.D. at 272 (internal quotation marks omitted). Therefore, not only does the twenty-eight day period for filing Rule 59(e) motions not apply to the defendant’s instant Rule 54(b) motion—and hence, it is not “two years too late,” as the plaintiff argues, see Pl.’s Recons. Opp’n at 3—but the Court also has discretion to grant such a Rule 54(b) motion “as justice requires,” even in the absence of a change in the controlling law, see, e.g., Capitol Sprinkler Inspection, 630 F.3d at 227.
It is worth noting in any event that the Court does consider Boomer to be an intervening change in Virginia law, or at the very least “a controlling or significant change in the law ... since the submission of the issue to the court,” see Act Now, 286 F.R.D. at 125, which warrants reconsideration of the MDL Court’s denial of the defendant’s previous motion for summary judgment. It defies a plain reading of the MDL Court’s Order denying summary judgment to claim, as the plaintiff does, that “[the MDL Court]’s ... legal analysis and conclusion [in that Order] are in lock-step with Boomer.” See Pl.’s Recons. Opp’n at 3. There can be no question that the MDL Court relied upon a substantial contributing factor standard in concluding that summary judgment should be denied. The Order states: “On the record presented, Plaintiff has raised a genuine issue of fact as to whether Honeywell’s products, specifically, were a substantial contributing factor in causing Decedent’s injuries.” See Def.’s Recons. Mem. Ex. M at 4 (emphasis added). That this conclusion was not preceded by citation to Virginia ease law applying the “substantial contributing factor” test is unsurprising because no such case law exists. As the Virginia Supreme Court observed in Boomer: “The phrase ‘substantial contributing factor’ is not grounded ... in the jurisprudence of this Court: we have not, in the history of our ease law, ever invoked *33this language.’ Boomer, 736 S.E.2d at 730.5
In addition to the MDL Court’s reliance upon the substantial contributing factor test, Boomer represents a significant change in the law that applies to this case because, as the Virginia Supreme Court noted in Boomer, it was breaking new ground: “Here, for the first time, we are called upon to rule explicitly as to the causation standard appropriate for mesothelioma.” Boomer, 736 S.E.2d at 732 (emphasis added); see also id. at 730 (“Considering it now for the first time, we find several problems with the substantial contributing factor instruction.” (emphasis added)). Indeed, counsel for the plaintiff appeared to concede this at the pretrial conference, stating: “[E]veryone in this courtroom knows Boomer was a sea[ ] change for how litigants, litigants in the trial courts in Virginia [have] to litigate these cases now____ So I stand here to say at a minimum, Boomer, sufficiently shook things up.” See Tr. of Pretrial Conference at 71:25-72:9 (May 3, 2013). Thus, whether one calls it a “change,” a “sea[] change” or a substantial clarification in Virginia law, it is plain that Boomer constitutes a sufficiently significant shift in Virginia law to warrant reconsideration of the MDL Court’s decision to deny summary judgment to the defendant in this ease.
B. Defendant’s Motion to Strike
In support of its motion to strike the Mar-kowitz Declaration, the defendant makes two arguments. First, the defendant contends that the Markowitz Declaration should be stricken because it is “untimely under Rules 26 and 37.” See Def.’s Strike Mem. at 4. Second, the defendant argues that the Mar-kowitz Declaration should be stricken because it “constitute^] a sham affidavit.” Id. The Court will begin by discussing the defendant’s timeliness arguments.
1. The Markowitz Declaration Was Untimely.
Under the Federal Rules of Civil Procedure, a party who intends to offer expert testimony is required to disclose a written report for each expert witness. See Fed. R.Civ.P. 26(a)(2)(B). Rule 26 also provides that “[a] party must make these disclosures at the times and in the sequence that the court orders.” Fed.R.Civ.P. 26(a)(2)(D). There is a limited exception to this rule that requires a party to “supplement” any disclosure made under Rule 26(a) “if the party learns that in some material respect the disclosure or response is incomplete or incorrect, .and if the additional or corrective information has not otherwise been made known to the other parties during the discovery process or in wilting.” Fed.R.Civ.P. 26(e)(1).
It is clear that, under the Federal Rules outlined above, the February 8, 2013 Markowitz Declaration is untimely. First, there is no dispute that the plaintiff did not submit the Markowitz Declaration “at the times and in the sequence that the court order[ed].” See Fed.R.Civ.P. 26(a)(2)(D). The MDL Court’s scheduling order required all of the plaintiffs expert reports to be completed and served by November 22, 2010. See Def.’s Strike Mem. Ex. A at 1, ECF No. 57-1. That same order required that all expert discovery be completed by January 24, 2011. Id. The plaintiff was not granted any extensions of time in this regard, nor did the plaintiff otherwise seek leave of the Court before filing the Markowitz Declaration.
In opposing the defendant’s motion to strike, the plaintiff argued that the Markow-itz Declaration was timely, under the logic that “[i]f Honeywell’s Motion for Reconsideration ... is timely, then Plaintiffs response to the Honeywell motion and Dr. Markow-itz’s Declaration are, necessarily, timely.” See Pl.’s Opp’n to Def.’s Mot. to Strike Decl. *34of Dr. Steven Markowitz (“Pl.’s Strike Opp’n”) at 2, ECF No. 72. The plaintiff appears to believe that, because “Honeywell has refreshed its summary judgment motion” by asking for reconsideration of the MDL Court’s order, the defendant “has refreshed the Plaintiffs rights under Rule 56 of the Federal Rules of Civil Procedure, including FRCP 56(c)(4).” Id. In this regard, the plaintiff claims that Rule 56(c)(4) “provides a party with the right to produce an affidavit or declaration to support or oppose a summary judgment motion” and “Plaintiff has complied with this rule by submitting Dr. Markowitz’s February [8], 2013 Declaration.” Id. at 2-3. This argument misperceives the meaning of Rule 56(c)(4). That rule states simply that “[a]n affidavit or declaration used to support or oppose a motion [for summary judgment] must be made on personal knowledge, set out the facts that would be admissible in evidence, and show that the affiant or declarant is competent to testify on the matters stated.” Fed.R.CivP. 56(c)(4). In other words, Rule 56(c)(4) sets forth the requirements for an affidavit or declaration submitted in support of or opposition to a motion for summary judgment; it does not impart any “right” to submit such affidavits or declarations. The plaintiffs capacious reading of Rule 56(c)(4) would essentially have that provision nullify Rule 26(a)(2)(D)’s requirement that expert testimony be submitted “at the times and in the sequence that the court orders.” See Fed.R.Civ.P. 26(a)(2)(D).
The plaintiff also argues for the first time in his Court-directed supplemental briefing that the Markowitz Declaration “was designed to respond to an issue not specifically raised by Honeywell’s initial motion for summary judgment and is timely under Fed. R.Civ.P. 26(e)(2) and 26(a)(3)(B).” See Pl.’s Supplemental Briefing at 2.6 As a result of the plaintiffs failure to raise this argument— or even to reference Rules 26 or 37—in his opposition to the defendant’s motion to strike, the plaintiff has waived this argument. See, e.g., In re Asemani, 455 F.3d 296, 300 (D.C.Cir.2006) (a litigant’s argument “[was] waived because it was made for the first time in [appellant’s] reply brief’); Hopkins v. Women’s Div., Gen. Bd. of Global Ministries, 284 F.Supp.2d 15, 25 (D.D.C.2003) (“It is well understood in this Circuit that when a plaintiff files an opposition to a dispositive motion and addresses only certain arguments raised by the defendant, a court may treat those arguments that the plaintiff failed to address as conceded.” (citing FDIC v. Bender, 127 F.3d 58, 67-68 (D.C.Cir.1997))).
Even if the plaintiff had not waived this argument, the argument would still fail on the merits. Rule 26(e) imposes a duty on a party to “supplement or correct its [26(a) ] disclosure or response ... if the party learns that in some material respect the disclosure or response is incomplete or incorrect.” Fed.R.Civ.P. 26(e)(1). This duty only applies “if the additional or corrective information has not otherwise been made known to the other parties during the discovery process or in writing.” Id. Rule 26(e) “does not permit parties to file supplemental reports whenever they believe such reports would be ‘desirable’ or ‘necessary’ to their case.” Minebea Co. v. Papst, 231 F.R.D. 3, 6 (D.D.C.2005); accord Dag Enters., Inc. v. Exxon Mobil Corp., 226 F.R.D. 95, 110 (D.D.C.2005) (observing that Rule 26(e) “ ‘does not ... bestow upon litigants unfettered freedom to rely on supplements produced after a court-imposed deadline, even if the rule’s pretrial limit is satisfied’ ” (quoting Reid v. Lockheed Martin Aeronautics Co., 205 F.R.D. 655, 662 (N.D.Ga.2001))). Rather, Rule 26(e) “permits supplemental reports only for the narrow purpose of correcting inaccuracies or *35adding information that was not available at the time of the initial report.” Minebea, 231 F.R.D. at 6 (citing Keener v. United States, 181 F.R.D. 639, 640 (D.Mont.1998)). “To construe supplementation to apply whenever a party wants to bolster or submit additional expert opinions would reek [sic] havoc in docket control and amount to unlimited expert opinion preparation.” Akeva L.L.C. v. Mizuno Corp., 212 F.R.D. 306, 310 (M.D.N.C.2002); see also Keener, 181 F.R.D. at 641 (“To countenance a dramatic, pointed variation of an expert’s disclosure under the guise of Rule 26(e)(1) supplementation would be to invite the proverbial fox into the hen-house. The experienced expert could simply ‘lie in wait’ so as to express his genuine opinions only after the plaintiff discloses hers.”).
The plaintiff in the instant action does not argue that the Markowitz Declaration corrects any inaccuracies or that it is based on new information. Rather, by the plaintiffs own admission, the Markowitz Declaration “was designed to respond to an issue not specifically raised by Honeywell’s initial motion for summary judgment.” PL’s Supplemental Briefing at 2. Although the plaintiff may perceive the addition of Dr. Markowitz’s new opinions to be “‘necessary1 to [his] case,” that is not a proper reason to supplement an expert report under Rule 26(e). See Minebea, 231 F.R.D. at 6. As the Supreme Court has observed, “a litigant’s failure to buttress its position because of confidence in the strength of that position is always indulged in at the litigant’s own risk.” Lujan v. Nat’l Wildlife Fed’n, 497 U.S. 871, 897, 110 S.Ct. 3177, 111 L.Ed.2d 695 (1990). For all of the above reasons, the Markowitz Declaration is untimely under Rule 26.
2. The Untimely Submission of the Mar-kowitz Declaration Was Neither “Substantially Justified” Nor “Harmless.”
Generally, “[i]f a party fails to provide information or identify a witness as required by Rule 26(a) or (e), the party is not allowed to use that information or witness to supply evidence on a motion, at a hearing, or at trial.” Fed.R.Civ.P. 37(c). Exclusion is not appropriate, however, when “the failure was substantially justified or is harmless.” Id. A court is also vested with discretion to impose other sanctions, such as “ordering] payment of the reasonable expenses, including attorney’s fees, caused by the failure,” which may be ordered “[i]n addition to or instead of’ the sanction of exclusion. Id. The phrase “substantially justified” is generally interpreted to mean “ ‘justified in substance or in the main’—that is, justified to a degree that could satisfy a reasonable person.” See Pierce v. Underwood, 487 U.S. 552, 565, 108 S.Ct. 2541, 101 L.Ed.2d 490 (1988). The advisory committee’s commentary to Rule 37(c) indicates that exclusion is a “self-executing sanction,” and that “[l]imiting the automatic sanction to violations ‘without substantial justification,’ ... is needed to avoid unduly harsh penalties in a variety of situations.” See Fed.R.Civ.P. 37(c) advisory committee’s note (1993 Amendments). The advisory committee note goes on to list examples of situations in which violations would be “substantially justified” or “harmless,” which include: “the inadvertent omission from a Rule 26(a)(1)(A) disclosure of the name of a potential witness known to all parties; the failure to list as a trial witness a person so listed by another party; or the lack of knowledge of a pro se litigant of the requirement to make disclosures.” Id.
The plaintiffs failure to disclose Dr. Markowitz’s new opinion in a timely fashion was not “substantially justified” or “harmless” within the meaning of Rule 37(c). First, it is clear that the omission of Dr. Markowitz’s new opinion regarding the independent sufficiency of the decedent’s Bendix brake exposure was not an innocent oversight. Prior to his February 8, 2013 declaration, Dr. Markowitz had submitted an expert report on November 22, 2010 and a supplemental declaration on March 7, 2011, and he was also examined at a deposition on January 24, 2011. See Markowitz Deck at 1. This was more than ample opportunity to “clarify” the nature and scope of his expert opinions. That Dr. Markowitz chose to tailor his opinions to a particular- legal standard was a choice that he (and the plaintiff) made at their own peril. See Lujan, 497 U.S. at 897, 110 S.Ct. 3177.
*36Furthermore, the manner in which the plaintiff submitted the February 8, 2013 Markowitz Declaration was, in particular, not “substantially justified” or “harmless.” The plaintiff did not seek leave of the Court to file a late declaration, nor did he confer with the defendant before doing so. The plaintiff did not ask the Court to reopen expert discovery or otherwise provide the defendant with an opportunity to cross-examine or rebut Dr. Markowitz’s new opinions before trial. This choice by the plaintiff was highly prejudicial to the defendant. The plaintiff claims that the submission of the Markowitz Declaration was “harmless” because “Honeywell cannot claim surprise at trial or prejudice,” see Pl.’s Supplemental Briefing at 4, but this is simply not true. Although the defendant may not be able to claim complete surprise, since Dr. Markowitz’s new opinions were disclosed to the defendant before trial, the defendant would undoubtedly be prejudiced by being unable to cross-examine Dr. Markowitz about his new opinions before trial and being unable to submit any further expert materials to rebut Dr. Markowitz’s new opinions. The plaintiff has not attempted to cure this prejudice, and at this late date it would be impossible to cure the prejudice before the scheduled trial date.7 See, e.g., Richardson v. Korson, No. 10-2049, 2012 WL 5907379, at *7 (D.D.C. Nov. 27, 2012) (“Where there is sufficient time to provide the prejudiced party with an opportunity to cure the prejudice of the untimely report, a court may permit submission of the report.”).
Finally, the plaintiffs untimely submission of the Markowitz Declaration was not substantially justified because there were other appropriate procedures available to the plaintiff to facilitate submission of the declaration without prejudicing the defendant. Most notably, because the Markowitz Declaration was, in the plaintiffs words, “designed to respond to an issue not specifically raised by Honeywell’s initial motion for summary judgment,” Pl.’s Supplemental Briefing at 2, the plaintiff could have (and likely should have) filed a motion under Rule 56(d), seeking permission to obtain further discovery in order to oppose the defendant’s motion for reconsideration. That rule provides that “[i]f a nonmovant shows by affidavit or declaration that, for specified reasons, it cannot present facts essential to justify its opposition,” the court has discretion to take a number of actions, including “allowing] time to obtain affidavits or declarations or to take discovery.” Fed.R.Civ.P. 56(d). As plaintiffs counsel admitted at the pretrial conference, the plaintiff submitted the new Markowitz Declaration because he “[w]as not going to run the risk ... that we didn’t have something in the record sufficient to satisfy the [Boomer] standard.” See Tr. of Pretrial Conference at 66:11-18. If the plaintiff indeed believed that the existing summary judgment record would be insufficient to oppose the defendant’s motion for reconsideration, the plaintiff should have filed a Rule 56(d) motion admitting as much, which would have facilitated an orderly and fair period of supplementary discovery, during which both sides would have had an opportunity to update their expert opinions post-Boomer. The plaintiff opted not to do so, however, perhaps because the plaintiff was unwilling to concede that “it [could not] present facts essential to justify its opposition,” as required by Rule 56(d). See Fed.R.Civ.P. 56(d). That the plaintiff chose to ignore this procedural avenue, for whatever reason, is a further ground to conclude that the plaintiffs course of conduct in submitting the untimely Markowitz Declaration was not substantially justified. The Court is sympathetic to the plaintiffs position in the wake of Boomer, but that difficult position does not justify flaunting the Federal Rules of Civil Procedure and the MDL Court’s scheduling order, nor does it justify imposing a significant and undue prejudice upon the defendant.
In light of the prejudice to the defendant caused by the untimely and not substantially justified submission of the Markowitz Declaration, and because that prejudice could not be cured without a significant delay in the start of trial, the Court concludes that the only appropriate sanction at this juncture is *37to exclude the February 8, 2013 Markowitz Declaration. See Fed.R.Civ.P. 37(c)(1). Accordingly, the Court concludes that the defendant’s motion to strike the Markowitz Declaration should be granted.8
C. Defendant’s Motion for Reconsideration
Having excluded the February 8, 2013 Markowitz Declaration, the Coui’t must now detei'mine the merits of the defendant’s motion for reconsideration. The Coui-t concludes that the defendant’s motion for reconsideration should be granted, regardless of whether the Markowitz Declaration were a pai’t of the summary judgment record.
1. Without the Markowitz Declaration, the Plaintiff Has Failed to Create a Genuine Issue of Material Fact Regarding Causation.
The plaintiff has been unwilling to concede that, absent the February 8, 2013 Markowitz Declaration, the Court would be compelled to grant the defendant’s motion for reconsideration. The most the plaintiff has offered in this regard is to state that “if the Court does not allow Plaintiff to oppose Honeywell’s Motion [for Reconsidex-ation] with the Markow-itz Declaration, Plaintiff concedes the Defendant’s Motion could be granted.” See Pl.’s Supplemental Briefing at 4-5 (emphasis in oi'iginal). Hence, the Court will examine the portions of the record cited by the pai’ties to detex’mine whether, without the Markowitz Declaration, the plaintiff can still survive summaiy judgment under Boomer.
The Coui't will begin by revisiting Boomer to eiystallize exactly what evidence is re-quix-ed to create a genuine issue of matei’ial fact regarding causation in a multiple-exposure asbestos case like the instant one. As the Virginia Supreme Court stated, a defendant in such a case may only be found liable “if the jurors, after hearing the testimony and evidence, believe that a negligent exposure was more likely than not sufficient to have triggered the harm.” Boomer, 736 S.E.2d at 731 (emphasis omitted); see also id. at 733 (“[T]he plaintiff must show that it is more likely than not that [the deeedentj’s alleged exposure to dust from [the defendant’s] brakes occurred prior to the development of [the decedent]’s cancer and was sufficient to cause his mesothelioma.”); id. (“The [trial] court now needs to consider the experts’ opinions as to whether the exposures by [the defendants] were each more likely than not sufficient to have caused mesotheli-oma.” (emphasis in original)). Thus, it is clear that, at a minimum, in order to survive summary judgment, a plaintiff must come forth with some medical or scientific evidence that exposure to the defendant’s pi’oduct was sufficient, in and of itself, to ti'igger the injury.
The Boomer court, however, did not stop thei'e. The Vii’ginia Supreme Court also described the kind of expert testimony that is required to establish liability under the “sufficiency” standard. First, Boomer stated— not once, but twice—that “expei’ts must opine as to what level of exposure is sufficient to cause mesothelioma, and whether the levels of exposux’e at issue in this case were sufficient.” Id. at 733; see also id. at 731 (“The factfinder is left, having heard the nature of the exposures to each of the products at issue, as well as the medical testimony as to the requisite exposure necessary to cause mesothelioma, to determine whether the exposure attributable to each defendant was more likely than not sufficient to have caused the harm.” (emphasis added)). In stating this, Boomer mandated a two-pai’t showing: “[1] what level of exposure is sufficient to cause mesothelioma, and [2] whether the levels of exposui’e at issue in this case were sufficient.” Id. at 733. The coui’t further stated that, where a plaintiff has been exposed to multiple sources of asbestos, each of which is potentially sufficient to cause mesothelioma, “[e]xeluding other exposures from the pool of multiple sufficient causes will l'equii’e competent medical testimony indicating whether the timing of exposure could possibly have caused the cancer.” Id. at 732. The Court will consider the plaintiffs evidence in light of this guidance from the Virginia Supreme Court in Boomer.
*38Having excluded the Markowitz Declaration, the Court will first consider the only other piece of expert testimony, other than the Markowitz Declaration, which the plaintiff cited in opposition to the defendant’s motion for reconsideration. That was the deposition testimony of Dr. Jerrold Abraham, in which he opined that “ ‘if [the decedent] had only that [Navy exposure], that would have been the only cause. If he had other exposures [ie., brake exposures] and not that [Navy exposure], those [brake exposures] would have been the only cause.’ ” See Pl.’s Recons. Opp’n at 8 (emphasis omitted) (quoting Abraham Dep. at 135-37). This testimony by Dr. Abraham is insufficient to create a genuine issue of material fact, primarily because it is an opinion about a counterfactual, hypothetical situation not present in this case. As Dr. Abraham stated right before making the statement quoted by the plaintiff: “Well, that’s a hypothetical of some other person who had no other exposure____” See Abraham Dep. at 136:1-2. The bottom line is that Dr. Abraham never opined that the decedent’s exposure to Bendix brakes was independently sufficient to trigger his mesothelioma, and thus Dr. Abraham’s deposition testimony does not raise a genuine issue of material fact regarding causation under Boomer.
The only other evidence that the plaintiff has pointed to in order to create a genuine factual question regarding causation is Dr. Markowitz’s prior opinions, contained in his expert report, his March 7, 2011 declaration, and his January 24, 2011 deposition.9 In fact, plaintiffs counsel asserted at the pretrial conference that “[t]he defendants are setting up a false dichotomy between Mar-kowitz’s original pronouncements versus his current pronouncements” because “[t]hey are not mutually exclusive.” See Tr. of Pretrial Conference at 65:2-5. In fact, plaintiffs counsel went so far as to claim that “[t]he sufficient to have cause[d] position that [Dr. Markowitz] has staked out is effectively a subset of substantially contributed. It’s both.” Id. at 65:18-20. To determine the validity of the plaintiff’s position, the Court must first provide a brief overview of the various opinions Dr. Markowitz has offered on causation that were not contained in his February 8, 2013 declaration.
In his original, November 22, 2010 expert report, Dr. Markowitz stated the following conclusion regarding the link between the defendant’s product and the decedent’s injury:
As you know, most cases of malignant mesothelioma in the United States, especially of the pleura, are caused by prior exposure to asbestos, often occupational in nature. [The decedent] reported such exposure during his work in the Navy, both during the active service and inactive service in the reserves, as well as his work at Fort Belvoir and in performing brake repair replacement over numerous decades. Such exposure is sufficient to cause his malignant mesothelioma.
See Markowitz Deck Ex. A at 9, ECF No. 53-3. It is clear that this opinion is insufficient to meet the standard articulated in Boomer. Although the final sentence’s reference to “[s]uch exposure” is arguably vague, Dr. Markowitz’s use of that phrase clearly refers to the multiple exposures that he listed in the previous sentence, which included the decedent’s exposures to asbestos in the Navy and at Fort Belvoir. Thus, the Court finds that the only reasonable interpretation of this November 22, 2010 opinion is that Dr. Markowitz believed that all of the decedent’s cumulative exposures to asbestos, taken together, were sufficient to cause his cancer. That does not satisfy Boomer and does not create a genuine issue of material fact on causation.
The plaintiff has also pointed to specific portions of Dr. Markowitz’s January 24, 2011 deposition testimony. See Pl.’s Supplemental Briefing at 2. The first portion of Dr. Mar-kowitz’s testimony cited by the plaintiff is as follows:
*39Q: All right. And we’ve just discussed this in the past, but just so we can add it specifically for this case, of those exposures which if any do you believe were responsible for causing [the decedent’s mesothelioma?
A: Well, I believe that his exposures were cumulative, that he had exposures in each of these settings that was significant and contributed to his over-all exposure, that his mesothelioma was caused by his cumulative exposure to asbestos.
See Pl.’s Supplemental Briefing Ex. 1, at 2, 4-5, ECF No. 150-1 (emphasis added) (quoting Markowitz Dep. at 14:1-10). The second portion of the deposition cited by the plaintiff is as follows:
Q: All right. Now, Doctor, we’ve discussed some of these areas in the past, and I’m just going to jump around very briefly on a couple things to clear up some of my own notes. Do you believe that the[r]e’s a threshold for exposure below which asbestos disease, specifically mesothelioma, will not occur?
A: No, I don’t believe a threshold has been—such a threshold has been established.
Id. at 3 (quoting Markowitz Dep. at 16:4-12). Finally, the plaintiff quoted the following from Dr. Markowitz’s deposition:
Q: Okay. Does brake dust cause mesothe-lioma?
A: To the ... To the extent that ...
Q: Or is it a cause of mesothelioma?
A: To the extent that it includes asbestos fibers and exposure, it would.
Q: So—
A: It would cause mesothelioma.
Id. at 5 (quoting Markowitz Dep. at 54:16-55:8). None of this testimony, however, creates a genuine factual question regarding causation under Boomer. The three opinions quoted can be summarized as follows: (1) the decedent’s cumulative exposure to asbestos (including in the Navy and at Fort Belvoir) caused his cancer; (2) no safe level of exposure to asbestos has been established; and (3) at a general level, brake dust containing asbestos causes mesothelioma. None of these opinions single out the decedent’s exposure to Bendix brakes and draws a link between that exposure and the decedent’s cancer.10 That link, although absent from Dr. Markowitz’s deposition testimony, is essential under the Boomer sufficiency standard.
Finally, to the extent that the plaintiff has pointed to Dr. Markowitz’s March 7, 2011 declaration, that declaration is also cléarly insufficient to satisfy the Boomer causation standard. In that declaration, Dr. Markow-itz opined that “each and every occupational exposure to asbestos-containing products in the Navy, at Fort Belvoir, Virginia and while performing automotive brake work was a substantial contributing factor in causing his malignant mesothelioma and resultant death.” See Markowitz Deck Ex. B at 3, ECF No. 53-3. It is precisely this sort of opinion that the Virginia Supreme Court rejected. See Boomer, 736 S.E.2d at 730 (rejecting the “substantial contributing factor” formulation of proximate causation). Therefore, this March 7, 2011 opinion by Dr. Mar-kowitz plainly does not create a genuine factual question under Boomer.
Although the above discussion reveals that none of the plaintiffs evidence, excepting the stricken Markowitz Declaration, is capable of creating a genuine issue of material fact regarding causation, the Court must address one last argument made by the plaintiff on this subject. As referenced above, plaintiffs *40counsel contended at the pretrial conference that “[t]he sufficient to have cause[d] position that [Dr. Markowitz] has staked out is effectively a subset of substantially contributed. It’s both.” Tr. of Pretrial Conference at 65:18-20. This position, if valid, would permit the plaintiff to survive summary judgment because it is clear that. Dr. Markowitz opined that the decedent’s exposure to Bendix brakes was a substantial contributing factor in causing his cancer and resultant death. See, e.g., Markowitz Deck Ex. B at 3. The plaintiffs position in this regard, however, is not valid. To begin, it would be inconsistent with the Boomer decision to conclude that a “sufficient to have caused” opinion is necessarily subsumed within a “substantial contributing factor” opinion. As the Virginia Supreme Court stated, “[t]he term substantial contributing factor could be construed to mean any cause that is more than a merely de minimis factor,” and thus “a reasonable juror could be confused as to the quantum of evidence required to prove causation in the face of both a substantial contributing factor and a proximate cause instruction.” Boomer, 736 S.E.2d at 730.
Aside from being inconsistent with the reasoning of Boomer, the plaintiffs position is also faulty as a matter of logic. The Court pointed this out at the pretrial conference, using a commonly cited tort analogy put forth by the plaintiff. See Tr. of Pretrial Conference at 68:22-69:5. Under that analogy, if two fires are started in a house, and the house burns down, then each fire was both (1) a substantial contributing factor to the house burning down; and (2) independently sufficient to have caused the house to burn down. All that this analogy demonstrates is that a sufficient cause also necessarily qualifies as a substantial contributing factor. Where the plaintiffs analogy goes awry, however, is that the converse is not necessarily true: just because something was a substantial contributing factor in causing the house to burn down does not mean it was necessarily independently sufficient to do so. For example, if there were an accelerant in the burning house {e.g., gasoline) that caught fire, causing the house to burn down faster than it would have otherwise, the accelerant would almost certainly have been a “substantial contributing factor” in causing the house to burn down. Yet, equally clear is the conclusion that the accelerant, by itself, would not have been independently sufficient to cause the house to burn down. As this simple example demonstrates, the plaintiff is wrong to suggest that a “sufficient to have caused” opinion is necessarily subsumed within a “substantial contributing factor” opinion. As a result, despite the plaintiffs attempt to show otherwise, Dr. Markowitz’s opinion that exposure to Bendix brakes was a substantial contributing factor in causing the decedent’s cancer—like the rest of the plaintiffs pre-February 2013 evidence—is insufficient to create a genuine issue of material fact under Boomer.
2. Even with the Markowitz Declaration, the Plaintiff Would Have Been Unable to Create a Genuine Issue of Material Fact Under Boomer.
In light of the Court’s decision to exclude the February 8, 2013 Markowitz Declaration, the preceding holding regarding the plaintiffs other (pre-February 2013) evidence is sufficient to grant the defendant’s motion for reconsideration and grant summary judgment to the defendant. Even so, the Court also concludes that the February 8, 2013 Markowitz Declaration would be insufficient to create a genuine issue of material fact regarding causation, even if it had not been excluded.
As discussed above, Boomer articulated a two-step showing that is required for a plaintiff to demonstrate liability in a multiple-exposure asbestos cause: “[1] what level of exposure is sufficient to cause mesothelioma, and [2] whether the levels of exposure at issue in this case were sufficient.” Boomer, 736 S.E.2d at 733. The adequacy of Dr. Markowitz’s opinion, therefore, depends upon what the Virginia Supreme Court meant by “level of exposure [that] is sufficient to cause mesothelioma.” See id. The plaintiff maintains that “level of exposure” does not inquire “quantification” of exposure. See, e.g., Tr. of Pretrial Conference at 19:13-16, 29:22-23, 31:7-10, 32:8-9; see also Pl.’s Reeons. Opp’n at 8-9. Rather, the plaintiff asserts that, to satisfy Boomer, an expert need only *41opine that the “level of exposure” sufficient to cause mesothelioma is, for example, “any exposure above what is in the background air.” See Tr. of Pretrial Conference at 17:18-19. The basis for this assertion appears to be that Boomer cited with approval a ease called Owens-Corning Fiberglas Corp. v. Watson, 243 Va. 128, 413 S.E.2d 630 (1992), which the Court will discuss further below. See id. at 16:16-17:10,18:17-21. The plaintiff argued that Dr. Markowitz’s opinion satisfies this “level of exposure” requirement by opining that “there’s no safe level of exposure to any type of asbestos.” Id. at 17:16— 18:8; see also Markowitz Deck at 5 (“[TJhere has not been established a safe level of exposure to asbestos below which individuals are not at risk for developing pleural malignant mesothelioma.”).11
The Court disagrees with the plaintiffs assessment. First, the plaintiff is mistaken regarding the Boomer court’s citation to the Watson case. The Boomer court cited that case once for the proposition that “Virginia statutory and case law makes clear that the Commonwealth permits recovery for parties injured by asbestos exposure, including those with mesothelioma, even when a jury must draw inferences from indirect facts to determine whether an exposure was causal.” Boomer, 736 S.E.2d at 729. In a similar' fashion, the Watson court held that “the evidence, though circumstantial, was sufficient to support the jury’s finding that Watson was exposed to [the defendant’s product] and that such exposure was a proximate cause of his death.” Watson, 413 S.E.2d at 639. None of this has anything to do with the legal standard by which a plaintiffs causation evidence is judged. Rather, Boomer’s citation to Watson addresses the kind of evidence that a plaintiff may offer to establish causation in a mesothelioma case. All that Boomer’s citation to Watson means is that a plaintiff may offer circumstantial evidence of exposure in order to establish that a particular exposure was causal, i.e., that a plaintiff was exposed to a particular kind of asbestos prior to developing mesothelioma. Other than observing that “the medical evidence [at trial] revealed that very limited exposure to asbestos fibers can cause meso-thelioma,” id., the Watson court had nothing to say regarding the proper legal standard for determining whether a plaintiffs evidence creates a genuine issue of material fact regarding causation.
Second, the plaintiffs argument draws a false equivalence between (1) the hypothetical opinion that “any exposure [to asbestos] above what is in the background air” is sufficient to cause mesothelioma, see Tr. of Pretrial Conference at 17:18-19, and (2) Dr. Markowitz’s “no safe level” opinion. Specifically, Dr. Markowitz opined for the first time in his February 8, 2013 declaration “that there has not been established a safe level of exposure to asbestos below which individuals are not at risk for developing pleural malignant mesothelioma.” Markowitz Deck at 5. This is quite plainly not an opinion regarding “what level of exposure is sufficient to cause mesothelioma,” see Boomer, 736 S.E.2d at 733 (emphasis added), such as “any exposure above what is in the background air,” Tr. of Pretrial Conference at 17:18-19.
Dr. Markowitz’s opinion about “no safe level” addresses risk, not cause, and there is a significant distinction between those two concepts. Many substances that we encounter every day raise our risk of developing serious diseases. For example, studies have indicated that consuming alcohol raises one’s risk of developing various cancers—particularly cancers of the mouth and throat. See, e.g., V. Bagnardi, et al., A Meta-Analysis of Alcohol Drinking and Cancer Risk, 85 British J. Cancer 1700 (2001). Other studies suggest that eating “added sugars” increases one’s risk of developing heart disease. See Jean A Welsh, et al., Caloric Sweetener Consumption and Dyslipidemia Among U.S. Adults, 303 J. Am. Med. Ass’n 1490 (2010). Even skipping breakfast has been shown to increase men’s risk of developing diabetes by 21%. See Rania A. Mekary, et al., Eating Patterns and Type 2 Diabetes Risk in Men: *42Breakfast Omission, Eating Frequency, and Snacking, 95 Am J. Clinical Nutrition 1182 (2012). This is not the same thing as saying that alcohol causes cancer or eating too much sugar causes heart disease or skipping breakfast causes diabetes. If exposui’e to a substance is a risk factor for a health outcome, that typically means that exposure to the substance has been associated with that health outcome at a particular level of statistical significance, but coi’relation does not imply causation. When A is correlated with B, it could be that A causes B, but it could also be that B causes A, or that A and B ax’e both the consequences of a common cause, among other possibilities.
This is only to say that infexi’ing causation is much mox-e complicated than simply observing con-elation, and the former should not be confused for the latter. This is not to say, however, that exposux-e to chx-ysotile asbestos does not cause mesothelioma. The Court lacks the expertise to opine on such matters. The point is that, by mex-ely offex--ing opinions about “x-isk,” neither Di\ Mar-kowitz, nor any of the plaintiffs other experts, has offered an opinion about “what level of exposux-e is sufficient to cause meso-thelioma,” as x-equired by Vix-ginia law. See Boomer, 736 S.E.2d at 733 (emphasis added). Impox-tantly, as discussed below, giving such an opinion may not necessax-ily require an exact quantification or dosage of chx-ysotile asbestos that is sufficient to cause mesotheli-oma. Indeed, Boomer implied that “the cux--rent state of medical knowledge” has not pinpointed “an identifiable threshold level of exposux-e [to asbestos] tx-iggei-ing [mesotheli-oma],” and therefore a “dose-related approach to causation is ... [not] necessax-ily appropx-iate for mesothelioma.” Id. at 732.
The implication that there is no “identifiable threshold level of exposure [to asbestos] tx-iggex-ing [mesothelioma],” however, is in noticeable tension with the Boomer court’s later admonition that “expex-ts must opine as to what level of exposure is sufficient to cause mesothelioma.” Boomer, 736 S.E.2d at 732-33. This tension can be resolved by putting the fox-mer statement in fuller context. The Boomer coux-t made this statement in the context of x-ejecting comment g to section 27 of the Restatement (Thix-d) of Torts. See id. at 732. That comment states that, “[w]hen a pex-son contracts a disease such as cancer, and sues multiple actors claiming that each provided some dose of a toxic substance that caused the disease---some or all of the person’s exposures may not have been but-for causes of the disease,” if “there is some thx-eshold dose sufficient to cause the disease” and the pex-son was “exposed to doses in excess of the thx-eshold dose befox-e contracting the disease.” See Restatement (Thix-d) of Tox-ts: Liability for Physical & Emotional Hax-m § 27 cmt. g (2010). Thus, Boomer’s statement that comment g’s “dose-x-elated approach to causation is ... [not] necessax-ily appropx-iate for meso-thelioma,” can be constx-ued to mean that asbestos plaintiffs need not px-esent scientific evidence about the exact dose of asbestos that would be sufficient to tx-igger mesotheli-oma.12 Under such a constx-uction, evidence *43of dosage would be much more precise than the evidence about a more general “level of exposure [that] is sufficient to cause meso-thelioma,” which Boomer does require. See Boomer, 736 S.E.2d at 732-33. In short, although Boomer does not require evidence about a specific threshold carcinogenic dose of asbestos, it does require expert evidence about the “level of exposure [that] is sufficient to cause mesothelioma,” which must constitute more than an opinion about heightened “risk” from exposure to asbestos.13 See id.
By requiring the presentation of expert evidence regarding a “level of exposure [that] is sufficient to cause mesothelioma,” id., Boomer also made clear that an expert may not simply take the level of asbestos exposure of a particular plaintiff and opine that such exposure was sufficient to cause the plaintiffs mesothelioma. Instead, the expert must first identify some touchstone “level of exposure [that] is sufficient to cause meso-thelioma” and compare that level to the plaintiffs exposure. See id. In other words, Boomer does not permit a medical expert to offer an ad hoc opinion on the sufficiency of a particular exposure, if that opinion is untethered from a scientific benchmark for sufficiency. Yet, that is the opinion that Dr. Markowitz offers in his February 8, 2013 declaration. Dr. Markowitz does not identify any “level of exposure [that] is sufficient to cause mesothelioma,” see id., in his February 8, 2013 declaration, but rather only opines that (1) the decedent’s exposures to asbestos were “each independently sufficient to cause mesothelioma in and of themselves,” and (2) “there has not been established a safe level of exposure to asbestos below which individuals are not at risk for developing malignant mesothelioma,” see Markowitz Deck at 5-6 (emphasis added). Therefore, even if that declaration were admissible, the medical opinions contained in that declaration would be insufficient to create a genuine issue of material fact regarding causation under Boomer.
IV. CONCLUSION
As the foregoing discussion establishes, the plaintiffs submission of the February 8, 2013 Markowitz Declaration was untimely under the Federal Rules of Civil Procedure and the MDL Court’s scheduling order pertaining to expert discovery. In addition, the plaintiffs submission of that declaration was not substantially justified or harmless, and therefore the Court concludes that the declaration should be excluded under Federal Rule of Civil Procedure 37. Accordingly, the defendant’s motion to strike is granted. Furthermore, either with or without Dr. Markowitz’s February 8, 2013 declaration, the plaintiff cannot create a genuine issue of material fact on the question of factual causation, and therefore the defendant’s motion for reconsideration regarding its motion for summary judgment is also granted.
An appropriate Order accompanies this Memorandum Opinion.
. The plaintiff is the representative of the estate of the decedent, John M. Tyler.
. The Court has already resolved thirteen of these motions. See Minute Order dated Apr. 22, 2013 (resolving five motions); Minute Order dated May 3, 2013 (resolving seven motions); Memorandum & Order dated May 8, 2013, ECF No. 155 (resolving one motion).
. The defendant is the successor-in-interest to Bendix Corporation. Pretrial Statement at 2.
. John Crane, Inc. was voluntarily dismissed from this action on March 1, 2013. See Stipulation of Voluntary Dismissal, ECF No. 71. Additionally, the plaintiff voluntarily dismissed nineteen other defendants while this case was pending in the MDL—seven of whom were voluntarily dismissed with prejudice and presumably settled with the plaintiff for consideration. See Statement of John Crane, Inc. at 5-6, ECF No. 55.
. The reason the MDL Court included the "substantial contributing factor” language in its decision was perhaps because the plaintiff claimed in his opposition brief before the MDL Court that "Virginia Courts follow the majority and recognize the substantial factor concept” and therefore "Plaintiffs must present evidence that exposure to Bendix brakes was a substantial contributing factor in causing [the decedent]'s injury.” See Pl.’s Opp’n to Def. Honeywell Int’l, Inc.’s Mem. in Supp. Mot. for Summ. J. as to Pl.’s Negligence & Breach of Warranty Claims at .11, In re: Asbestos Prod. Liab. Litigation (No. VI), No. 10-cv-67422 (E.D.Pa. Mar. 7, 2011).
. Although the Court directed the plaintiff to file this supplemental briefing, the Court did not request any briefing on whether the Markowitz Declaration was timely under Federal Rule of Civil Procedure 26. Rather, the Court ordered the plaintiff to submit further briefing on the following questions: (1) why the plaintiff has submitted a supplementary expert report if Boomer did not constitute an intervening change in Virginia law; (2) why the plaintiff’s submission of a supplementary expert report, in the absence of an intervening change in law and without seeking leave of the Court, was "substantially justified” under Federal Rule of Civil Procedure 37(c)(1); (3) whether the plaintiff concedes that, in the event that the February 8, 2013 Markowitz Declaration is stricken, the defendant’s Motion for Reconsideration must be granted; and (4) if the plaintiff does not so concede, what other legal basis or bases would exist to deny the defendant’s Motion for Reconsideration. Order dated Apr. 25, 2013, at 2.
. The defendant has stated in response to the Court’s direct question that, assuming the prejudice to it were capable of being cured, the additional discovery needed to do so would require nine to twelve additional weeks. See Def.’s Supplemental Briefing at 6.
. Since the Court resolves the defendant's motion to strike on timeliness grounds, the Court need not address the defendant's argument under the "sham affidavit” doctrine.
. Since the plaintiff did not cite these portions of the record in opposing the defendant’s motion for reconsideration, but rather raised them in his Court-directed supplemental briefing, see Pl.'s Supplemental Briefing at 2, the plaintiff has arguably waived his ability to rely on such evidence in opposing the motion for reconsideration. Regardless, the Court considers this evidence under the assumption that the plaintiff did not waive his ability to rely on it.
. Although Dr. Markowitz opined that exposure to asbestos-containing brake dust "would cause mesothelioma," see Pl.'s Supplemental Briefing Ex. 1, at 5, the Court finds that the only reasonable way to read this testimony is that Dr. Mar-kowitz believes that, as a matter of epidemiology and at a population level, asbestos in brake dust is a cause of mesothelioma. That is not the same as opining that a particular exposure to asbestos-containing brake dust was sufficient to cause a particular case of mesothelioma. This latter, more particular, kind of evidence is what Boomer requires. See, e.g., Boomer, 736 S.E.2d at 733 ("[T]he plaintiff must show that it is more likely than not that Lokey's alleged exposure to dust from Ford's brakes occurred prior to the development of Lokey's cancer and was sufficient to cause his mesothelioma.'' (emphasis added)).
. Plaintiff’s counsel incorrectly asserted at the pretrial conference that Dr. Markowitz rendered this "no safe level” opinion in his "original report.” See Tr. of Pretrial Conference at 18:6-8. In fact, this “no safe level” opinion was not added until Dr. Markowitz’s February 8, 2013 declaration. See Markowitz Deck at 5.
. An alternative explanation for Boomer’s statement about comment g is that this Restatement , (Third) language is in significant tension with the holding of Boomer and the other portions of section 27. In addition to the portions quoted in the text above, comment g also states that "each of the exposures prior to the person's contracting the disease ... is a factual cause of the person’s disease under the rule in this Section.” See Restatement (Third) of Torts: Liability for Physical & Emotional Harm § 27 cmt. g. This latter portion of comment g is in palpable tension with the rest of section 27. It is in particular tension with comment f, which addresses the situation where "one actor's contribution may be sufficient to bring about the harm while another actor’s contribution is only sufficient when combined with some portion of the first actor’s contribution.” See id. cmt. f. In that situation, the Restatement (Third) commentary states that ”[w]hether the second actor’s contribution can be so combined into a sufficient causal set is a matter on which this Restatement takes no position and leaves to future development in the courts.” Id. Yet, it is precisely this sort of combining of exposures that appears to be endorsed by comment g. The above-quoted portion of comment g is also in significant tension with Boomer itself because comment g does not require that "each of the exposures prior to a person’s contracting the disease” be independently sufficient in order for those exposures to be considered "factual cause[s]” of the disease. See id. cmt. g. Hence, it could very well be that Boomer rejected comment g because it was too lax about what constitutes a "factual cause,” rather than because comment g embraced a "dose-related ap*43proach to causation.” See Boomer, 736 S.E.2d at 732.
. This construction of Boomer’s discussion also fits with the rubric of case law cited earlier in the Boomer opinion from other states, which had each articulated “variant definitions" of the "substantial contributing factor language in their asbestos litigation.” See id. at 730. A Maryland case had applied a "frequency, regularity and proximity test" to determine causation, a California case had defined “substantial contributing factor” to include any exposure that increased the plaintiff's "risk” of developing cancer, and a Texas case had held that specific evidence relating to dose was necessary to determine whether exposure from a defendant was a substantial contributing factor. See id. (citing Lohrmann v. Pittsburgh Corning Corp., 782 F.2d 1156 (4th Cir.1986) (applying Maryland law), Rutherford v. Owens-Illinois, Inc., 16 Cal.4th 953, 67 Cal. Rptr.2d 16, 941 P.2d 1203 (1997), and Borg-Warner Corp. v. Flores, 232 S.W.3d 765 (Tex. 2007)). Boomer appears to reject the California and Texas approaches in favor of an approach more similar to that applied in the Maryland case: more than elevated "risk,” but less than precise dosage.