This is an action brought under 18 U.S.C. § 923(f)(3) to review the decision of the Secretary of the Treasury denying an application for a license to deal in firearms. The plaintiff, Stein’s Inc., d/b/a Harry Stein’s Loan, appeals from the district court’s judgment upholding the Secretary’s decision. The plaintiff argues that the district court had an obligation pursuant to 18 U.S.C. § 923(f)(3) to try the case de novo and that its summary disposition of the case on the basis of the administrative record and without taking additional evidence was inconsistent with that obligation. Our review of the proceedings before the district court convinces us that the district court’s disposition of the cause was consistent with the statutory provision authorizing judicial review and that the district court’s judgment is correct. Accordingly, we affirm.
*464I.
The plaintiff, a Wisconsin corporation with its principal place of business in Milwaukee, is a pawnbroker dealing in firearms. Pursuant to the provisions of the Gun Control Act of 1968, the plaintiff must obtain from the Secretary of the Treasury a license to deal in such instrumentalities. The plaintiff did possess a license prior to 1978 and applied for the license’s renewal in late 1977. The Regional Regulatory Administrator of the Bureau of Alcohol, Tobacco and Firearms on February 7, 1978, denied the plaintiff’s application because of the plaintiff’s repeated violations of 18 U.S.C. § 922(m), 27 C.F.R. § 178.124(c) and 27 C.F.R. § 178.125(e). The Administrator found that this pattern of violations demonstrated “a careless and willful disregard” of the gun control law and regulations justifying nonrenewal under 18 U.S.C. § 923(d)(1).1 The notice of the Administrator’s action informed the plaintiff of its right to have that action reviewed pursuant to 18 U.S.C. § 923(f)(2).
The plaintiff invoked its right to an informal hearing before a hearing officer. At that hearing, held on April 4, 1978, three inspectors for the Bureau of Alcohol, Tobacco and Firearms testified for the government. Numerous exhibits showing the re-suits of several investigations made of the plaintiff’s business over a period of several years were also introduced. This evidence established that the plaintiff had repeatedly failed to adhere to the Secretary’s record-keeping requirements. The evidence also showed that the recordkeeping requirements had been explained to the plaintiff’s president, Kenneth Stein, several times but that violations persisted. The plaintiff’s president testified in defense of the charges. He admitted that there had been violations, attributed them to employee error, and generally denied that the violations were willful. He also maintained that most of the violations were of technical requirements and promised that measures had and would continue to be taken to ensure that the violations would not occur.
The hearing officer in his report found that the government had established repeated violations “for relatively minor things” as well as some more serious violations. The report, however, contained no explicit findings as to willfulness. Instead, the hearing officer, apparently of the opinion that nonrenewal of the license was too severe a penalty for the infractions found, recommended that the original denial be reversed and the application be granted.2
*465The hearing officer’s recommendation was overruled by the Administrator. At the end of the report is the following notation, signed by the Administrator:
I disagree with the recommendation of the Hearing Officer. My decision is that the denial of the renewal application should stand.
More formal findings denying the plaintiff’s application were later prepared which incorporated the reasons specified in the Administrator’s original denial. These were sent to the plaintiff along with a “Final Notice of Denial or Revocation of License” dated April 26, 1978.
The plaintiff then initiated this suit under 18 U.S.C. § 923(fX3) in the district court.3 The defendant responded by filing an answer and a motion for summary judgment. The motion was accompanied by a certified copy of the administrative record. The plaintiff in turn filed an affidavit of its president which denied in general terms that any of the violations were willful.
The district court granted the government’s motion for summary judgment. The district court held that it was unnecessary to decide the proper standard of review because The district court held that the conclusory denials of any willful violations in the affidavit submitted by the plaintiff did not require a contrary conclusion.
the uncontested evidence already in the administrative record . . . reveals that despite plaintiff’s admitted knowledge of the recordkeeping requirements and the prohibition of delivery of firearms to certain individuals, it violated the law continually for about three years. The failure to maintain proper records when a dealer is aware of his legal duty to do so has been held to be a willful violation of 18 U.S.C. § 923(c) [sic].
II.
The crux of the plaintiff’s argument concerns the scope of and procedure for judicial review mandated by 18 U.S.C. § 923(f)(3). The government, however, has not chosen to address this issue. We believe that an orderly disposition of this appeal requires that we explore the nature of review authorized by statute before examining the particular facts of this case, and, consequently, we examine the issue here.
Section 923(f)(3) provides in part that the district “court may consider any evidence submitted by the parties to the proceeding. If the court decides that the Secretary was not authorized to deny the application or to revoke the license, the court shall order the Secretary to take such action as may be necessary to comply with the judgment of the court.” As one court has noted, the section “is unclear and in some respects appears to contain contradictory language.” Weidner v. Kennedy, 309 F.Supp. 1018, 1019 (C.D.Cal.1970). Some courts have held that the decision of the Secretary may be upheld if supported by substantial evidence in the administrative record. See McLemore v. United States Treasury Department, 317 F.Supp. 1077 (N.D.Fla.1970); cf. Lewin v. Blumenthal, 590 F.2d 268, 269 (8th Cir. 1979) (semble as to standard applied, but court noted that “substantial evidence” supported license *466nonrenewal). Other courts, however, have noted that the section permits the court to “consider any evidence submitted by the parties.” Finding this phrase ambiguous, they have looked to the provision’s legislative history. That history evidences Congress’ intention to “provide broad judicial review” or “de novo review” of license non-renewals and revocations. H.R.Rep.No. 1577, 90 Cong., 2d Sess., reprinted in [1968] U.S.Code Cong. & Admin.News, pp. 4410, 4411, 4423. Relying on that scant legislative history, those courts have concluded that the statute requires de novo review of the Secretary’s decisions. See, e. g., Prino v. Simon, 606 F.2d 449, 451 (4th Cir. 1979); Fin & Feather Sport Shop, Inc. v. United States Treasury Department, 481 F.Supp. 800 (D.Neb.1979); Service Arms Co. v. United States, 76 F.R.D. 109 (W.D.Okl.1977); Shyda v. Director, 448 F.Supp. 409 (M.D.Pa.1977); Rich v. United States, 383 F.Supp. 797 (S.D.Ohio 1974); Weidner v. Kennedy, 309 F.Supp. 1018 (C.D.Cal.1970).
We agree with the latter decisions that the statute requires de novo review. We do not, however, view those decisions as necessarily irreconcilable with those upholding the Secretary’s decision if based on substantial evidence. This is because of our view of the nature of the review authorized by 18 U.S.C. § 923(f)(3). Although the legislative history of § 923(f)(3) speaks of “de novo review,” we do not understand that history to require the district court to hold a hearing and receive evidence beyond that contained in the administrative record in every case. The language of the statute itself is permissive: “the court may consider any evidence submitted by the parties.” (Emphasis added.) Instead we believe that Congress intended to afford the district court the discretion to receive additional evidence to be considered along with that in the administrative record when some good reason to do so either appears in the administrative record or is presented by the party petitioning for judicial review.4 In other words, there is a difference between the “de novo review” required by 18 U.S.C. § 923(f)(3) and a “trial de novo.” Cf. United States v. Raddatz, 447 U.S. 689, 100 S.Ct. 2406, 65 L.Ed.2d 424 (1980) (the “de novo determination” required by the Federal Magistrates Act does not always require a de novo hearing). We hold that while the statute requires the former, it does not in every case require the latter.5 Considerations of judicial economy suggest that trial anew of factual matters already litigated should be avoided unless substantial doubt infects the agency’s findings of fact. See Guilday v. United States Department of Justice, 385 F.Supp. 1096, 1098-99 (D.Del. 1974) (“In the absence of clear guidelines from Congress, it is appropriate for the courts to consider the interests of judicial economy and fairness before requiring an automatic trial de novo. To the extent that a trial de novo would require pretrial discovery and trial proof of factual background already developed in administrative proceedings, it would be unjustifiably duplicative”).
Because even if the district court chooses not to receive additional evidence, its review is de novo, the decision of the Secretary is not necessarily “clothed with any presumption of correctness or other advantage.” Weidner v. Kennedy, 309 F.Supp. 1018, 1019 (C.D.Cal.1970). The ultimate decision as to the law and the facts remains with the trial judge. However, the district court, consistent with its obligation to review the matter de novo, may accord *467the Secretary’s findings such weight as it believes they deserve in light of the evidence in the administrative record and the evidence, if any, the district court receives to supplement that record. In this sense, the Secretary’s decision may be upheld when the trial court concludes in its own judgment that the evidence supporting the decision is “substantial.” 6
Once the district court has reviewed the decision of the Secretary, the role of the appellate court is limited. It may review as in any other action the judgment of the district court to insure that it correctly applied the law including the appropriate scope of review. The district court’s findings as to the facts, however, may not be upset unless clearly erroneous. Fed.R.Civ.P. 52(a); see Prino v. Simon, 606 F.2d 449, 451 (4th Cir. 1979). Moreover, at least arguably the appeals court may review a district court’s decision not to receive additional evidence for abuse of discretion.
In summary, we hold that 18 U.S.C. § 923(f)(3) requires that the district court undertake de novo review of the decision of the Secretary. That review may be confined to the administrative record or may be supplemented by the admission of additional evidence. In either event, although the trial court need not accord any particular weight to the Secretary’s findings and decision, it may, in the exercise of its discretion, accord them such weight as it believes they deserve. The district court’s findings of fact will not be disturbed on appeal unless clearly erroneous.
III.
Applying these standards to the present case, we find no error in the district court’s entry of judgment in favor of the Secretary. The evidence before the district court consisted of the record of the proceedings before the Secretary and the conclusory affidavit of the plaintiff’s president, Kenneth Stein, denying that the plaintiff willfully violated the Gun Control Act or regulations. The administrative record contains considerable evidence of the plaintiff’s repeated and consistent violation of the bookkeeping and other requirements imposed pursuant to the Act. This evidence was uncontested by the plaintiff either in the proceedings before the Secretary or in the affidavit submitted to the district court. There is simply no doubt that the plaintiff is chargeable with numerous violations to the Gun Control Act and the Secretary’s regulations. The only substantial issue before the district court was, as in most actions brought pursuant to 18 U.S.C. § 923(f)(3), whether those violations were willful.
The district court correctly applied the legal definition of willfulness as that term is used in 18 U.S.C. § 923(d)(1)(C). The statute does not require bad purpose or evil motive before a license may be revoked or a renewal application denied. The Secretary need only “ ‘prove that the petitioner knew of his legal obligation and purposefully disregarded or was plainly indifferent to the recordkeeping requirements.’ ” Lewin v. Blumenthal, 590 F.2d 268, 269 (8th Cir. 1979) (quoting Shyda v. Director, 448 F.Supp. 409, 415 (M.D.Pa.1977)); cf. Prino v. Simon, 606 F.2d 449, 451 (4th Cir. 1979). See also Goodman v. Benson, 286 F.2d 896, 900 (7th Cir. 1961) (“if a person 1) intentionally does an act which is prohibited,-irrespective of evil motive or reliance on erroneous advice, or 2) acts with careless disregard of statutory requirements, the violation is willful”). Of course where, as here, *468the licensee is a corporation, it is chargeable with the conduct and knowledge of its employees. Finn & Feather Sport Shop, Inc. v. United States Treasury Department, 481 F.Supp. 800, 807 (D.Neb.1979) (and cases cited therein).
The next question is whether the district court applied the proper scope of review. Our examination of the district court’s memorandum order convinces us that the trial court in essence reviewed the Secretary’s decision de novo and adopted as its own the Secretary’s finding that the plaintiff’s violations were willful. The district court recognized that courts have disagreed about the appropriate scope of review and held that under any standard the decision of the Secretary was justified. We take this, along with the district court’s assessment of the evidence in the administrative record, as indicating that the court exercised its own independent judgment as to the facts and concluded that the Secretary correctly found the- relevant facts.7
The district court’s finding is amply supported by the record and we cannot say that it is clearly erroneous. The record shows that the plaintiff’s agents were instructed on the requirements of the law and acknowledged an understanding of the Secretary’s regulations.8 Nevertheless, and despite repeated warnings from the Secretary, violations continued to occur. Evidence of repeated violations with knowledge of the law’s requirements has been held sufficient to establish willfulness. See, e. g., Lewin v. Blumenthal, 590 F.2d 268 (8th Cir. 1979). Although the plaintiff has attempted to dismiss those violations as “unintentional, unavoidable and de minimis," see Modica v. United States, 518 F.2d 374, 375 (5th Cir. 1975), we do not regard the evidence to that effect as so compelling as to warrant our disturbing the finding of the district court.
What has already been said largely disposes of the final question before us: Whether the district court abused its discretion in declining to receive additional evidence bearing on the issue of willfulness. The evidence in the administrative record showed a persistent pattern of violations even after warnings from the Secretary. The inference that the violations were willful is compelling, notwithstanding the plaintiff’s president’s protestations to the contrary before the hearing officer. Certainly the trial judge was free to draw the same inference that the Secretary did on the basis of the evidence in the administrative record. Moreover, the plaintiff did not offer to produce any additional evidence before the district court which had not already been considered by the Secretary. Although the plaintiff did submit an affidavit in which its president denied in general and conclusory terms that any of the violations were willful, we are not persuaded that such an affidavit established a good reason for the district court to exercise its discretion to receive additional evidence. The trial court did not abuse its discretion here.
*469IV.
Our decision here does not deprive those denied dealer’s licenses of the opportunity to have the Secretary’s decisions reviewed in the courts. The district court here did review the Secretary’s decision and found it authorized in law and supported by the facts. Had the plaintiff shown some good reason to do so, we are confident that the district court would have liberally exercised its discretion to permit the introduction of additional evidence. Absent such a showing by the plaintiff, however, we cannot say that the district court erred in deciding the case on the basis of the evidence in the administrative record.
The judgment of the district court is AFFIRMED.
. 18 U.S.C. § 923(d)(1) provides that an application for a license shall be approved if
(A) the applicant is twenty-one years of age or over;
(B) the applicant (including, in the case of a corporation, partnership, or association, any individual possessing, directly or indirectly, the power to direct or cause the direction of the management and policies of the corporation, partnership, or association) is not prohibited from transporting, shipping, or receiving firearms or ammunition in interstate or foreign commerce under section 922(g) and (h) of this chapter;
(C) the applicant has not willfully violated any of the provisions of this chapter or regulations issued thereunder;
(D) the applicant has not willfully failed to disclose any material information required, or has not made any false statement as to any material fact, in connection with his application; and
' (E) the applicant has in a State (i) premises from which he conducts business subject to license under this chapter or from which he intends to conduct such business within a reasonable period of time, or (ii) in the case of a collector, premises from which he conducts his collecting subject to license under this chapter or from which he intends to conduct such collecting within a reasonable period of time.
. The hearing officer’s report states, “In my judgment, Mr. Stein appears sincere in his efforts to make the changes necessary to prevent future violations. I feel that he should be given one more opportunity to prove his intentions.” During oral argument before this court, the plaintiff suggested that this was tantamount to a finding that the violations were not willful. We, however, agree with the Secretary that the hearing officer was merely suggesting that the license nonrenewal was too drastic a sanction for the violations committed. The plaintiff has not suggested in this court or the district court that the penalty, even if authorized, was unduly severe. In any event, the courts under 18 U.S.C. § 923(f)(3) may only determine whether the Secretary’s decision is “authorized.” Selecting an appropriate penalty for the violations found is a matter committed to the Secretary’s *465discretion. See Nowicki v. United States, 536 F.2d 1171 (7th Cir. 1976), cert. denied, 429 U.S. 1092, 97 S.Ct. 1103, 5 L.Ed.2d 537 (1977); G. H. Miller & Co. v. United States, 260 F.2d 286, 295 (7th Cir. 1958) (en banc), cert. denied, 359 U.S. 907, 79 S.Ct. 582, 3 L.Ed.2d 572 (1959).
. 18 U.S.C. § 923(f)(3) provides:
If after a hearing held under paragraph (2) the Secretary decides not to reverse his decision to deny an application or revoke a license, the Secretary shall give notice of his decision to the aggrieved party. The aggrieved party may at any time within 60 days after the date notice was given under this paragraph file a petition with the United States district court for the district in which he resides or has his principal place of business for a judicial review of such denial or revocation. In a proceeding conducted under this subsection, the court may consider any evidence submitted by the parties to the proceeding. If the court decides that the Secretary was not authorized to deny the application or to revoke the license, the court shall order the Secretary to take such action as may be necessary to comply with the judgment of the court.
. To aid the district court in determining which factual matters might warrant the taking of additional evidence, the party petitioning for review should clearly set forth in the complaint those findings which he intends to challenge. Cf. Trailer City, Inc. v. Board of Adjustment, 218 N.W.2d 645, 647-48 (Iowa 1974). Moreover, the petitioner should identify in the administrative record or allege with particularity the additional facts or evidence which he regards as casting substantial doubt upon the Secretary’s findings.
. In those cases in which the trial court exercises its discretion to admit additional evidence, it may chose to receive the evidence in the form of affidavits rather than testimony, at least in those cases in which no substantial credibility questions are presented. See Prino v. Simon, 606 F.2d 449 (4th Cir. 1979).
. It is sometimes said that “de novo’’ means an independent determination by the court in which no deference is given or may.be given to any prior determination of the controversy. See United States v. Raddatz, 447 U.S. 667, 689, 100 S.Ct. 2406, 2419, 65 L.Ed.2d 424 (1980) (Stewart, J., dissenting). See also Weidner v. Kennedy, supra 309 F.Supp. at 1019. Although the term may have that import, the majority opinion in Raddatz illustrates that the term does not always have that meaning. See also 7 U.S.C. § 499g(c) (review in the district court of reparation orders of the Secretary of Agriculture under the Perishable Agricultural Commodities Act “shall be a trial de novo and shall proceed in all respects like other civil suits for damages, except that the findings of fact and order ... of the Secretary shall be prima-facie evidence of the facts therein stated”).
. It is true that procedurally this case was decided on a motion for summary judgment where technically fact finding is inappropriate and all reasonable inferences must be drawn in favor of the party opposing the motion. Nevertheless, because the procedure for review pursuant to 18 U.S.C. § 923(f)(3) permits the district court to enter judgment on the basis of the administrative record when no substantial reason to receive additional evidence is present, the practice of the courts has been to grant judgment summarily when the “material facts developed at the administrative hearing, which the court also concludes justify nonrenewal” are not substantially drawn into question by the party petitioning for review. Mayesh v. Schultz, 58 F.R.D. 537, 539 (S.D.Ill.1973). See, e. g., Fin & Feather Sport Shop, Inc. v. United States Treasury Department, 481 F.Supp. 800 (D.Neb.1979); Shyda v. Director, 448 F.Supp. 409 (M.D.Pa.1977). We find no substantial error with this procedure as long as the district court provides a statement of reasons sufficient to inform the parties and the appellate court of the basis of the court’s decision.
. One document in the administrative record, for example, is signed by Kenneth Stein and acknowledges that the recordkeeping requirements were explained to him and that
to the-best of my knowledge and belief, I understand the laws and regulations, and will operate my firearms business in accordance therewith. If I receive a license, I understand that I am responsible for the acts or omissions of any employee or agent acting for me in the conduct of the firearms business.