Opinion for the Court filed by Circuit Judge TATEL.
Concurring opinion filed by Circuit Judge TATEL.
TATEL, Circuit Judge:This petition to review a decision of the National Labor Relations Board requires us to consider what information a union’s duty of fair representation requires it to give employees about their right under Communications Workers of America v. Beck, 487 U.S. 735, 108 S.Ct. 2641, 101 L.Ed.2d 634 (1988), to pay only that portion of union dues attributable to “collective bargaining, contract administration, and grievance adjustment.” Id. at 745, 108 S.Ct. 2641. The Board held that unions have no obligation to tell employees who have not yet exercised their Beck rights what percentage of dues are spent on nonrepresentational activities. The Board also ruled that the union in this case had given employees who had chosen to exercise their Beck rights sufficient information to satisfy its duty of fair representation. Finding a portion of the Board’s decision unsupported by reasoned deci-sionmaking and the remainder in conflict with Supreme Court and circuit precedent, we grant the petition for review.
*44I
Section 8(a)(3) of the National Labor Relations Act gives unions the right to negotiate union security provisions allowing them to collect dues from all members of a bargaining unit, including those who decline full union membership. 29 U.S.C. § 158(a)(3); Marquez v. Screen Actors Guild, Inc., 525 U.S. 33, 119 S.Ct. 292, 296, 142 L.Ed.2d 242 (1998). Employees who choose not to become full union members are called “financial core” payors. See NLRB v. General Motors Corp., 373 U.S. 734, 742, 83 S.Ct. 1453, 10 L.Ed.2d 670 (1963). In Beck, the Supreme Court held that section 8(a)(3) does not obligate employees “to support union activities beyond those germane to collective bargaining, contract administration, and grievance adjustment.” 487 U.S. at 745, 108 S.Ct. 2641. Unlike full union members and financial core payors, employees who object to funding nonrepresentational activities, called “Beck objectors,” pay reduced dues. Beck objectors are also known as “potential challengers” because they have a right to challenge the union’s calculation of the reduced dues; in response to such challenges, the union bears the burden of justifying its calculation. See California Saw & Knife Works, 320 NLRB 224, 240, 1995 WL 791959 (1995).
Petitioners Robert Penrod, Nadine Pen-rod, and Clement Wierzbicki, long-time employees of DynCorp Support Services Operations, resigned from their union, International Brotherhood of Teamsters, Local 166, and exercised their Beck rights. Petitioner John Burnham never became a full member of the union, instead informing Local 166 shortly after being hired that he wished to be a financial core payor.
Having received no information from Local 166 about their Beck rights, all four petitioners filed unfair labor practice charges against the union. Pursuant to an agreement settling these charges, Local 166 promised to give all new employees and financial core payors initial Beck notices outlining their Beck rights and describing how to exercise them. The union also sent letters to the Beck objectors informing them that they must pay 93.6 percent of union dues and describing procedures for challenging that calculation. Attached was a letter from an independent auditor confirming the accuracy of the reduced fee calculation. The auditor in turn attached a handwritten worksheet listing nineteen categories of expenditures, such as “salaries,” “benefits paid,” “legal expenses,” and “auto expenses.” For each expenditure category, the auditor identified the amount and percentage “chargeable” and “nonehargeable” to Beck objectors. The worksheet referred to a “breakdown” and to “schedules,” but they were not attached. The auditor’s worksheet is attached to this opinion as Appendix A.
Complaining that the information furnished by Local 166 ánd its auditor was inadequate, petitioners renewed their unfair labor practice charges. In response, the NLRB’s General Counsel filed a formal complaint charging Local 166 with failing to include in the initial Beck notice the percentage by which dues would be reduced for new employees and financial core payors who exercise their Beck rights. The General Counsel also charged that the financial information given to Beck objectors was “too vague to permit each of these employees to decide whether to challenge any of the expenditures listed in the Statement of Expenses.”
The Board rejected the General Counsel’s charges. International Bhd. of Teamsters, Local 166, AFL-CIO, 327 NLRB No. 176, 1999 WL 170689 (1999). Although agreeing that the duty of fair representation required Local 166 to provide initial Beck notices to new employees and financial core payors, the Board determined that the union had not violated its duty by failing to include the percentage by which dues would be reduced. Citing the time and expense needed to make such calculations, and explaining that the duty of fair representation affords unions a *45“wide range of reasonableness,” the Board concluded that the decision to furnish the percentage was a “judgment call” within the union’s discretion. Id., slip op. at 3. With respect to employees who had exercised their Beck rights, the Board found that the auditor’s information was sufficient for them to determine whether to challenge the reduced fee calculation. Id., slip op. at 4-5.
Petitioners challenge the Board’s decision on three grounds. The first two concern the information given Beck objectors. The one-page handwritten list of expenditures, they say, neither explained nor justified the union’s determination that Beck objectors would be required to pay 93.6 percent of dues. Their second challenge focuses on the approximately twenty-five percent of total expenditures that Local 166 paid to its affiliates. See Appendix A. The third challenge relates to new employees and financial core payors; according to petitioners, such employees are entitled to know the precise amount by which their dues would be reduced were they to exercise their Beck rights. Local 166, defending the Board’s conclusion that it satisfied its duty of fair representation, has intervened.
II
Grounded in section 9(a) of the NLRA, 29 U.S.C. § 159(a), the judicially created duty of fair representation reflects the principle that a union’s status as exclusive representative of employees in a bargaining unit “includes a statutory obligation to serve the interests of all members without hostility or discrimination toward any, to exercise its discretion with complete good faith and honesty, and to avoid arbitrary conduct.” Vaca v. Sipes, 386 U.S. 171, 177, 87 S.Ct. 903, 17 L.Ed.2d 842 (1967). Unions breach their duty of fair representation when their conduct toward members of a bargaining unit is “arbitrary, discriminatory, or in bad faith.” Id. at 190, 87 S.Ct. 903.
The Supreme Court fleshed out the duty of fair representation in the Beck context in Chicago Teachers Union, Local No. 1, AFT, AFL-CIO v. Hudson, 475 U.S. 292, 106 S.Ct. 1066, 89 L.Ed.2d 232 (1986). In that case, the Court established procedures that unions must follow to protect objectors and described the financial information that unions must give to potential objectors. “Basic considerations of fairness, as well as concern for the First Amendment rights at stake,”' the Court held, “dictate that the potential objectors be given sufficient information to gauge the propriety of the union’s fee.” Id. at 306, 106 S.Ct. 1066. While Hudson involved public employees and arose under the First Amendment, this circuit has applied its requirements to nonpublic unions such as Local 166. See, e.g., Abrams v. Communications Workers of America, 59 F.3d 1373, 1379 n. 7 (D.C.Cir.1995). With this framework in mind, we turn to petitioners’ three challenges.
General Disclosure to Beck Objectors
With respect to their first claim— that the list of nineteen expenditure categories was insufficient to allow them to determine whether to challenge the reduced fee calculation—petitioners complain that the single sheet “contains no notes or other written explanation concerning how that union’s overall 93.6% chargeable, 6.4% nonchargeable calculation was made.” That lack of explanation, petitioners contend, was compounded by the “vague and unexplained” line items and the absence of referenced schedules and breakdowns.
The Board ruled that the Beck objectors had no need for schedules, breakdowns, or better-defined categories of expenses to determine whether to challenge the reduced dues calculation. Addressing the Beck objectors’ most fundamental argument—that the single page of financial information failed to explain hoit) the union arrived at its 93.6 percent chargeable figure—the Board relied entirely on a decision of the Seventh Circuit, Gilpin v. *46American Fed’n of State, County, and Mun. Employees, AFL-CIO, 875 F.2d 1310, 1316 (7th Cir.1989): “As the Seventh Circuit Court of Appeals has remarked in response to the same kind of argument, ‘if it did [include the disclosure petitioners requested], the notice would be as long and complicated as an SEC prospectus.’ The court discerned no reason for imposing such a requirement, and neither do we.” 327 NLRB No. 176, slip. op. at 5 (citing Gilpin, 875 F.2d at 1316).
The union’s disclosure in Gilpin was more extensive than Local 166’s. In addition to listing thirty-five different types of expenditures (comparable to the nineteen categories provided by Local 166), the notice in Gilpin identified thirty-five specific union activities, indicating for each whether the union considered it “wholly chargeable,” “wholly unchargeable,” or “mixed.” Gilpin, 875 F.2d at 1316. For example, the notice identified publishing a union newsletter as “mixed” and adjusting grievances as “wholly chargeable.” Id. For a payment of $1.50, each employee could also obtain an arbitrator’s “detailed ruling” said to sustain the union’s expense allocations. Id. .According to the Seventh Circuit, this information “should be enough ... to allow the employee to decide whether there is any reason to mount a challenge.” Id.
By comparison, the Beck objectors in this case were given only general categories of expenditures. See Appendix A. To be sure, two of these categories — “contributions” and “organizing” — were quite specific, but both were totally “nonchargeable.” The union offered no separate list of activities and provided no opportunity to' obtain a detailed explanation of how the union calculated the allocation of expenses. In addition, the Beck objectors never received the “schedules” and “breakdown” said to be attached to the auditor’s report.
The information provided in Gilpin, as the Seventh Circuit found, gave objectors a basis for objecting to the union’s calculation of reduced dues. For example, they could have reviewed the newsletter and made their own judgment about whether to challenge the union’s determination that newsletter costs were partially chargeable. Could Beck objectors in this case have made a similar judgment about the general categories of expenditures supplied by the auditor? For example, how could they have evaluated the union’s determination that “salaries” were partially chargeable to Beck objectors in view of the fact that the only other information they were given about salaries was the gross amount? Instead of answering this question, the Board simply cited Gilpin as though the case dealt with the same type of disclosure. Because it did not, we think the Board’s decision reflects a classic case of lack of reasoned decisionmaking. See Macmillan Publishing Co. v. NLRB, 194 F.3d 165, 168 (D.C.Cir.1999) (The Regional Director’s “rationale was the antithesis of reasoned decisionmaking, and as such was arbitrary and capricious.”) (citing Motor Vehicle Mfrs. Ass’n v. State Farm Mut. Auto. Ins. Co., 463 U.S. 29, 43, 103 S.Ct. 2856, 77 L.Ed.2d 443 (1983)).
Information about Payments to Affiliates
Petitioners’ second complaint about the union’s financial disclosure focuses on the information about Local 166’s payments to affiliated unions. Representing almost twenty-five percent of the union’s total expenditures, payments to affiliates were 90.8 percent chargeable to Beck objectors. See Appendix A. In addition to arguing that Local 166 should have explained this calculation, petitioners claim that they are entitled to know which affiliates received funds and how those affiliates used those funds. They rely on the following language from Hudson: “[Esther a showing that none of [the money paid to affiliates] was used to subsidize activities for which nonmembers may not be charged, or an explanation of the share that was so used was surely required.” 475 U.S. at 307 n. 18, 106 S.Ct. 1066.
In concluding that Local 166’s disclosure was adequate, the Board distinguished *47Hudson: “In that case, the union paid more than half its income to affiliated organizations, but informed nonmembers only that they were required to pay 95 percent of full dues. It did not inform them of the basis on which it was charging them that amount or, apparently, anything regarding how the amounts transferred to affiliates were spent or what percentages were chargeable and nonchargeable.” 327 NLRB No. 176, slip. op. at 5.
The Board’s basis for distinguishing Hudson is curious. To begin with, two of the deficiencies in the Hudson notice that the Board said made Hudson different from this case were also deficiencies in Local 166’s disclosure. The union in Hudson, the Board said, “did not inform [the employees] of the basis on which it was charging them that amount or, apparently, anything regarding how the amounts transferred to affiliates were spent.” Id. Yet this is precisely the information that Local 166 failed to provide and that petitioners seek in this case.
So the Board’s conclusion that Hudson differs from this case boils down to two distinctions. In Hudson, the union spent fifty percent of its budget on affiliates; here, it spent twenty-five percent. In Hudson, the union failed to identify the percentage of payments to affiliates chargeable to Beck objectors; here, the union said such payments were ninety percent chargeable. Nothing in Hudson suggests that the level of required disclosure turns on such factors. Hudson’s directive is quite simple: unless a union demonstrates that “none of [the amount paid to affiliates] was used to subsidize activities for which nonmembers may not be charged,” then “an explanation of the share that was so used [is] surely required.” 475 U.S. at 307 n. 18, 106 S.Ct. 1066. Because Local 166 disclosed that over ninety percent of the amount paid to its affiliates was chargeable to Beck objectors, Hudson requires that the union explain how its affiliates used the money.
Initial Notice to New Employees and Financial Core Payors
This brings us to petitioners’ challenge to the Board’s ruling that the initial Beck notice given to new employees and financial core payors need not identify the percentage reduction in dues that would result from a Beck objection. Explaining its decision, the Board observed that calculating the reduced fee “can be an expensive and timeconsuming undertaking” and emphasized the “wide range of reasonableness” afforded unions in serving the employees they represent. 327 NLRB No. 176, slip op. at 3. We need not consider whether to defer to such reasoning, for this issue is squarely controlled by Hudson as interpreted by this court in Abrams.
In Hudson, the Supreme Court held that “[b]asie considerations of fairness, as well as concern for the First Amendment rights at stake, also dictate that the potential objectors be given sufficient information to gauge the propriety of the union’s fee.” 475 U.S. at 306, 106 S.Ct. 1066. Abrams expressly applies Hudson’s requirements to new employees and financial core payors. 59 F.3d at 1379. Since Hudson requires that potential objectors be told the percentage of union dues chargeable to them — for how else could they “gauge the propriety of the union’s fee”— and since Abrams applies Hudson to new employees and financial core payors, they too must be told the percentage of union dues that would be chargeable were they to become Beck objectors.
The Board and Local 166 nevertheless insist that Hudson applies only to employees who have elected to exercise their Beck rights, not to new employees and financial core payors. But Abrams could not have been clearer. Like the Board and Local 166, the dissent in Abrams argued that Hudson’s requirements do not apply to new employees and financial core payors. Abrams, 59 F.3d at 1383-84 (Tatel, J., concurring in part and dissenting in part). Abrams ruled to the contrary: “The dis*48sent takes issue with our interpretation of Hudson but the quoted language makes clear that potential objectors must be given adequate notice. Although the Supreme Court addressed the issue in the context of ‘information about the basis for the proportionate share’ of financial core expenses, the same ‘basic considerations of fairness’ necessarily extend to a union’s notice to workers of their right to object to payment of any expenses beyond the financial core.” Abrams, 59 F.3d at 1379 n. 6 (internal citation omitted).
The Board and Local 166 point out that Abrams concerned the wording of the initial Beck notice, not whether the union must disclose the percentage reduction. In order to conclude that the wording was inadequate, however, Abrams had to hold that Hudson applies to new employees and financial core payors, and Hudson carries with it the requirement that unions give employees “sufficient information to gauge the propriety of the union’s fee” — i.e., the percentage reduction (see supra at 47). 475 U.S. at 306, 106 S.Ct. 1066. We recognize that this means that new employees and financial core payors must be given the same information as Beck objectors, but Abrams is the law of this circuit.
Petitioners challenge the initial Beck notice for a second reason. They contend that the initial notice must not only identify the amount of the reduced fee but also explain the method used to calculate the fee. According to the Board, petitioners failed to raise this issue before the Board and so cannot raise it for the first time on appeal. We agree with the Board.
The two record excerpts petitioners point to — a paragraph in the petitioners’ final unfair labor practice charge and three paragraphs in the General Counsel’s fourth amended complaint — cannot fairly be read to raise the issue. Both refer only to the financial information designed for Beck objectors, not to the initial Beck notice given to new employees and financial core payors. Rejecting petitioners’ contention that the method of calculation is “implicit” in the issue of disclosure of the fee itself, we conclude that we may not consider petitioners’ claim that the initial Beck notice must include an explanation of the method used to calculate the fee. See 29 U.S.C. § 160(e) (“No objection that has not been urged before the Board ... shall be considered by the court, unless the failure or neglect to urge such objection shall be excused because of extraordinary circumstances.”); Harter Tomato Prods. Co. v. NLRB, 133 F.3d 934, 939 (D.C.Cir.1998).
Ill
The petition for review is granted, and this case is remanded to the Board for proceedings consistent with this opinion.
So ordered.
*49APPENDIX A
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