Opinion for the Court filed by Circuit Judge ROGERS.
This appeal challenges an opinion and order of the Securities and Exchange Commission denying two certified public accountants the privilege of practicing before the Commission. It revisits the question of whether the Commission has articulated a clear standard for a finding of “improper professional conduct” under Rule 102(e) of its Rules of Practice, 17 C.F.R. § 201.102(e). We conclude that the 'lack of clarity identified in the two
Checkosky v. SEC
opinions of the court,
I.
Michael Marrie and Brian Berry, as employees of the accounting firm, Coopers & Lybrand LLP (“Coopers”), acted as engagement partner and manager, respectively, for Coopers’ 1994 audit of California Micro Devices, Inc. (“Cal Micro”), which designs, manufactures, and distributes electric circuits and semiconductors. As engagement partner and engagement manager, Marrie and Berry were responsible for ensuring that the 1994 fiscal year audit *1199 of Cal Micro was conducted in accordance with generally accepted auditing standards (“GAAS”), and that the financial statements filed with the Securities and Exchange Commission were in conformity with generally accepted accounting principles (“GAAP”). They prepared an audit plan and began field work in July 1994, and on September 29, 1994, filed with the Commission the company’s Form 10-K annual financial report for the fiscal year ending June 30,1994.
Marrie and Berry conducted the audit against a backdrop of massive financial reporting fraud by Cal Micro, unknown to the accountants. The Commission found that in fiscal year 1994, the company fraudulently recognized revenue and receivables for the sale of unshipped or nonexistent products, even though its stated policy was to recognize revenue for products оnly upon shipment to customers; falsified sales records, invoices, and shipping documents, such as shipping merchandise to fictitious customers; and improperly overstated net assets and income, while understating net loss. Cal Micro had attempted to make reported revenues as high as possible in order to maintain the impression of growth after it had lost one of its major customers, Apple Computer Inc., which had accounted for 32% of the company’s total product sales the prior year. To avoid detection for improper revenue recognition, Cal Micro’s management attempted to “clean” the company’s books before the end of the fiscal year, informing Marrie and Berry that it had decided to issue approximately $12 million in credit to “write off’ certain accounts receivable. On August 4, 1994, however, Cal Micro issued a press release announcing its net income and earnings for the fourth quarter of 1994, and stated that it was writing off $8.3 million, not $12 million of accounts receivable, $1.3 million of which was written off as bad debt expense. Because amounts written off for returned products would be deducted directly from reported revenues, while amounts written off as bad debt would be treated as expenses and would not decrease reported revenues, Cal Micro attempted to maximize the portion of the write-off allocated to bad debt expense. Following the August 4,1994 press release, however, Cal Miсro’s stock price dropped and shareholders brought a lawsuit alleging accounting improprieties.
Regardless, on August 25, 1994, Marrie and Berry, on behalf of Coopers, presented their independent accountants’ report addressed to Cal Micro’s shareholders and directors, stating that Cal Micro’s financial statements complied with GAAP and that the audit had been conducted in accordance with GAAS. Following an independent investigation, Cal Micro filed a revised financial report with the Commission on February 6, 1995, showing a net loss of $15.2 million instead of earnings of $5 million, total revenue of $30.1 million rather than the previously reported $45.3 million, accounts receivable of $6.3 million instead of $16.9 million, $5.1 million in inventories instead of $13.9 million, and net property and equipment of $7.4 million instead of the previously reported $10.4 million.
On August 10, 1999, just shy of five years after Marrie and Berry presented the audit report to Cal Micro’s shareholders, the Commission, through the Division of Enforcement and Office of the Chief Accountant, instituted disciplinary proceedings against Marrie and Berry pursuant to Rules 102(e)(l)(ii) and 102(e)(l)(iv)(A). The Commission alleged that Marrie and Berry had engaged in improper professional conduct in that they each “violated GAAS by failing to exercise appropriate professional skepticism, obtain sufficient competent evidential matter, or adequately supervise field work” in connection with three aspects of the 1994 au *1200 dit: (1) the write-off of $12 million of accounts receivable; (2) the confirmation of the accounts receivable; and (3) the accounting of the sales returns and allowances for sales returns. The Commission also claimed that Marrie’s and Berry’s failures to examine the write-off, to investigate discrepancies in the confirmation responses, and to analyze Cal Micro’s sales returns and the adequacy of its allowance for returns, were “an extreme departure from professional standards.” Further, according to the Commission, Marrie and Berry were reckless in ignoring “unmistakable red flags” that indicated potential accounting irregularities in the areas of revenue recognition, accounts receivable confirmations, sales returns, sales cutoff, and cash collections. As a result, the Commission alleged that Cal Micro’s financial statements for the fiscal year 1994 were materially false and misleading and were not prepared in conformity with GAAP.
On September 21, 2001, an administrative law judge (“ALJ”) dismissed the charges, finding that Marrie and Berry had not engaged in improper professional conduct within the meaning of Rule 102(e). The ALJ ruled that reckless conduct under Rule 102(e)(l)(iv)(A) “must approximate an actual intent to aid in the fraud being perpetrated by the audited company,” and that the Commission had failed to prove that Marrie’s and Berry’s conduct had been reckless.
In re Marrie,
Initial Decision of the ALJ, Release No. 101, File. No. 3-9966, at 35, 81 (Sept. 21,
2001)(“In re Marrie I”).
On July 29, 2003, the Commission reversed the dismissal of the charges and imposed remеdial sanctions barring Marrie and Berry from practicing before the Commission, subject to Rule 102(e)(5)’s provision for reinstatement.
See
17 C.F.R. § 201.102(e)(5). In sanctioning Marrie and Berry, the Commission stated that “[t]he question is not whether an accountant recklessly intended to aid in the fraud committed by the audit client, but rather whether the accountant recklessly violated applicable professional standards. Recklessness, then, can be established by a showing of an externe departure from the standard of ordinary care for auditors.”
In re Marrie,
Exchange Act Release No. 48246,
II.
Rule 102(e), 17 C.F.R. § 201.102(e), provides the Commission with a means to ensure that the professionals on whom it relies “perform their tasks diligently and with a reasonable degree of competence.”
Touche Ross & Co. v. SEC,
(1) Generally. The Commission may censure a person or deny, temporarily or permanently, the privilege of appearing or practicing before it in any way to any person who is found by the Commission after notice and opportunity for hearing in the matter: (i) Not to possess the requisite qualifications to represent others; or (ii) To be lacking in character or integrity or to have engaged in unethical or improper professional conduct; or (iii) To have wilfully violated, or willfully aided and abetted the violation of any provision of the Federal securities laws or the rules and regulations thereunder.
17 C.F.R. § 201.102(e)(emphasis added). On June 12, 1998, in response to the court’s holding in
Checkosky II,
With respect to persons licensed to practice as accountants, ‘improper professional conduct’ under § 201.102(e)(l)(ii) means: (A) Intentional or knowing conduct, including reckless conduct, that results in a violation of applicable professional standаrds; or (B) Either of the following two types of negligent conduct:
(1) A single instance of highly unreasonable conduct that results in a violation of applicable professional standards in circumstances in which an accountant knows, or should know, that heightened scrutiny is warranted.
(2) Repeated instances of unreasonable conduct, each resulting in a violation of applicable professional standards, that indicate a lack of competence to practice before the Commission.
17 C.F.R. § 201.102(e)(1)(iv)(emphasis added).
Marrie and Berry contend that the Commission impermissibly retroactively applied its “non-fraud based” recklessness standard to the Rule 102(e) proceedings for conduct occurring in 1994, and erred in finding recklessness where therе was no knowing violation or intent to defraud. The Commission responds that retroactivity is not an issue because Rule 102(e)(1)(iv)(A) is consistent with its practice well before the misconduct at issue, and that in 1998 the Commission simply codified a standard that had been applied previously. It maintains that in borrowing the definition of recklessness from
Steadman,
A.
The court has engaged in an extended dialogue with the Commission about its standard for sanctioning professionals for “improper professional conduct.” The court has twice concluded that the Commission had failed to articulate an intelligible standard for “improper professional conduct” under Rule 2(e)(l)(ii), the predecessor to Rule 102(e), and had failed to specify what mental state was required for a violation of the Rule. In
Checkosky I,
Judge Randolph, by contrast, concluded thаt there was no ambiguity with regard to the Commission’s finding that negligence sufficed for a violation of Rule 2(e)(l)(ii),
id.
at 480, but that the Commission had failed adequately to justify its ruling that accountants could be suspended from practice under Rule 2(e)(1)(h) without any proof of an intent to defraud or bad faith.
Id.
at 479. Referring to the Commission’s decision in
In re Carter,
[1981 Transfer Binder]
On remand the Commission provided a further explanation, then affirmed the suspension of the accountants. But, in
Checkosky II,
B.
Congress has codified Rule 102(e)(1) as amended in 1998 in the Sarbanes-Oxley Act of 2002, 15 U.S.C. § 78d-3, and we begin with the observation that in the amended Rule 102(e), the Commission has cured the defects identified in Checkosky I and II. Absent such a conclusion, there would be no need to address Marrie’s and Berry’s retroactivity contentions for, once again, the Rule would be unclear.
The amended Rule clearly sets out the standard for when an accountant is deemed to have engaged in “improper professional conduct.” It provides that “improper professional conduct” means “[i]n-tentional or knowing conduct, including reckless conduct that results in a violation of applicable standards.” 17 C.F.R. § 201.102(e)(1)(iv)(A). It also identifies two types of negligent conduct that would warrant sanctions.
Id.
§ 201.102(e)(1)(B). In its accompanying explanation of the amended Rule, the Commission stated that “for purposes of consistency under the federal securities laws,” it was adopting the
Sundstrand!'Steadman
definition of recklessness used for substantive violations of the securities laws.
Amendments to Ride 102(e) of the Commission’s Rules of Practice,
The language and history of the amended Rule support the Commission’s interpretation that “recklessness” under that Rule can be demonstrated simply by evidence of “an extreme departure from the standard of ordinary care for auditors.” In re Marrie II, at *14. In this case, the Commission explained that “[ajdherence to applicable professional auditing standards protects the Commission’s processes regardless of whether a fraud has been committed.” Id. The Commission further explained in In re Marrie II that “[requiring proof of a mental state approximating an actual intent to aid in the fraud committed by the audited company would conflict with this purpose and fail to protect the Commission’s processes from acсountants who lack competence to appear before it.” Id. The Commission reasoned that a non-fraud based standard was warranted given the heavy reliance that it and the public placed on accountants “to assure disclosure of accurate and reliable financial information as required by the federal securities laws.” Id. Although it stated in a cryptic footnote that the “concept of materiality” continued to be relevant, see id. at *13 n. 18, it explained that the Rule did not require a showing that the financial statements filed by the accountants be false or materially misleading, for the Commission’s concern was to protect the integrity of its processes and investor confidence in its markets. Id. at *12-*13. Thus, “[a]n auditor who fails to audit properly under GAAS should not be shielded because the audited financial statements fortuitously are not materially misleading. An auditor who skips procedures designed to test a company’s reports or looks the other way despite suspicions is a threat to the Commission’s processes.” Id. at *13.
The 1998 amendments reflect choices that the Commission was authorized to make in promulgating its Rule, and Marrie and Berry do not contend to the contrary. Instead, they contend that the Commission took “diametrically opposite positions” in explaining the 1998 amendments and in its holding in their case. They proceed on the basis that the Commission’s adoption of the
Sundstrand/Steadman
definition of recklessness also required inclusion of а fraud element. But, in contending that they could not be found culpable absent a finding of con
*1205
scious or deliberate conduct, which the Commission conceded was lacking, their premise is faulty. The Commission’s authority to discipline professionals has long been distinguished from the execution of its substantive enforcement functions.
See Touche Ross,
No more problematic is Marrie’s and Berry’s contention that the amended Rule is arbitrary and capricious,
see
5 U.S.C. § 706, or unconstitutionally vague,
see Gates & Fox Co. v. Occupational Safety & Health Review Comm’n,
To the extent that Marrie and Berry point out that GAAS did not “technically” require them to audit the write-off, they miss the point. The Commission did not fault them fоr failing to audit the write-off, but with failing to exercise the requisite professional skepticism. The Commission concluded that the necessary professional skepticism was lacking because they failed to follow up on their own request that Cal Micro provide a documented analysis of the $12 million write-off, even though they were well aware that the write-off was unusually large and had occurred near the end of the fiscal year. Under GAAS, accountants must test “transactions that are both large and unusual, particularly at year-end.” AICPA, AU § 316.20. As certified public accountants, Marrie and Berry were deemed to understand the need to obtain adequate documentation to support a write-off of such a staggering amount, and, indeed, their call for documentation evinced an appreciation of what was required of them in conducting the audit. Under the circumstances, the Commission could reasonably conclude that their failure to obtain the necessary documentation was an extreme departure from professional standards.
For these reasons, we conclude Marrie and Berry have failed to show that the Commission’s amended Rule is arbitrary or capricious or unconstitutionally vague.
C.
Turning to the Commission’s application of amended Rule 102(e) in this case, we hold, in light of
Checkosky I
and
II,
that the Commission erred in applying its non-fraud Rule retroactively, for there was no “ascertainably certain” standard for finding “improper professional conduct” under Rule 102(e) in the summer of 1994 when Marrie and Berry audited Cal Micro.
See General Elec. Co. v. EPA,
Further, we cannot agree with the Commission that it did not retroactively apрly a new recklessness standard. In
Landgraf v. USI Film
Products,
In applying the amended Rule 102(e) to Marrie’s and Berry’s conduct in 1994, the Commission has imposed new legal consequences and new legal duties: the elimination of the good faith defense and of the requirement that materiality be proved by showing that a false or misleading financial statement had been filed. Prior to the 1998 amendments, the court concluded it was unclear whether good faith could be a defense to recklessnеss or a finding of improper professional conduct, as evidenced by conflicting lines of Commission precedents.
See Checkosky I,
Given Commission precedent and our own, the Commission’s statement in adopting thе 1998 amendment to Rule 102(e) that good faith was not a defense,
see
Rule 102(e)(1)(ii), and that “[s]ubjective good faith is inconsistent with a finding of knowing or intentional, including reckless, conduct,”
Adopting
Release, at 80,849, imposed new legal consequences. At the
*1208
time of the 1994 audit, Marrie and Berry did not have fair notice that they could be sanctioned for improper professional conduct even if they had been acting in good faith. In view of the Commission’s prior opinions and, even assuming they predicted the Commission would adopt the
Sundstrand/Steadman
recklessness standard, they had reason to believe that recklessness required proof of either an intent to defraud or a reckless disregard of their legal obligations.
See Steadman,
The Commission also changed the legal landscape in applying the amended definition of recklessness to Marrie’s and Berry’s conduct in 1994 when it altered the element of materiality. The Rule, as it is now interpreted, does not require a showing of false or misleading financial statements. In maintaining that it had always abided by the
Sundstrand/Steadman
definition of recklessness,
see
Respondent’s Br. at 34, the Commission was bound to apply the materiality requirements of those cases or make clear that it was adopting a different requirement. The court in
Sundstrand,
Notwithstanding these altered requirements for proving unprofessional conduct as a result of recklessness, the Commission contends that the amended Rule is not impermissibly retroactive because it “is substantively consistent with prior regulations or prior agency practices, and has been accepted by all Courts of Appeals to consider the issue.”
Nat’l Mining,
Second, the cases cited in the Commission’s opinion for the proposition that the amended Rule 102(e) simply codified its longstanding use of the recklessness standard were decided after Marrie’s and Berry’s sanctioned conduct.
See, e.g., In re Ponce,
Exchange Act Release No. 43235 (Aug. 31, 2000), 73 S.E.C. Dkt. 442, 465 n.52,
aff'd,
The court is constrained to hold, in light of Checkosky I and II, that regardless of whether the evidence showed that Marrie’s and Berry’s conduct in auditing Cal Micro was reckless under Rule 102(e) because it involved extreme departures in professional standards, the Commission’s recklessness standard was unclear in the summer 1994 when Marrie and Berry conducted the audit. Although the 1998 amendments to Rule 102(e) rectified the lack of clarity identified in Checkosky I and II, application of the amended Rule, which changed the legal landscape with respect to the standard for finding “improper professional conduct,” to conduct in 1994 was imper-missibly retroactive. Accordingly, we grant the petition and reverse the Commission’s opinion and order of July 29, 2003, without reaching the other challenges in the petition for review.
