Opinion for the Court filed by Circuit Judge BROWN.
In 1994, the Secretary of Labor personally and publieally served Dayton Tire with a citation alleging over 100 willful violations of the Occupational Safety and Health Act (the “OSH Act”). Dayton contested the citation, and by 1997, its appeal was before the Occupational Safety and Health Review Commission. There it sat, fully briefed and untouched, for over twelve years, until the Commission issued an order in 2010 affirming nearly all of the violations and assessing a $1,975 million penalty.
Dayton urges us to set aside the order because of the Commission’s lengthy delay. We grudgingly decline; the Commission’s dawdling—while regrettable—did not render its order inequitable or pointless. We agree with Dayton, however, that the Commission lacked substantial supporting evidence for its finding that the violations were willful. Accordingly, we vacate that portion of the order and remand for the Commission to reassess Dayton’s level of culpability. We trust the Commission will act before the decade is out.
I
The “lockout/tagout” standard, or LOTO standard, “covers the servicing and maintenance of machines and equipment in which the unexpected energization or start up of the machines or equipment, or release of stored energyf,] could cause injury to employees.” 29 C.F.R. § 1910.147(a)(l)(i). The standard requires employers to “establish a program ... for affixing appropriate lockout devices or tag-out devices to energy isolating devices,” id. § 1910.147(a)(3)(i); conduct periodic inspections to ensure compliance with the program, id. § 1910.147(c)(6)(i); and train employees on the “purpose and function of the ... program,” id. § 1910.147(e)(7)(i). “Authorized employees,” who perform service and maintenance on covered equipment, must receive more rigorous training than “affected employees,” who simply operate covered equipment. See id. § 1910.147(b), (c)(7)(i)(A), (B).
From 1969 to 2006, Dayton operated a tire-manufacturing facility in Oklahoma City, where it employed a separate company, Ogden Allied, to service and maintain the equipment. When the Occupational Safety and Health Administration (“OSHA”) promulgated the LOTO standard in 1989, Dayton’s safety manager, Phillip McCowan, reviewed the job tasks at the plant and determined that Dayton employees were only “affected employees” because Ogden employees were responsible for all service and maintenance on site. McCowan’s successor as safety manager, Kelley Mattocks, reviewed McCowan’s LOTO assessment in 1992 and concluded it was still valid.
*1252 In October 1993, a Dayton employee died from injuries he sustained when a machine activated unexpectedly. The incident prompted OSHA to send an inspector to the plant to assess Dayton’s LOTO compliance. Based on that inspection, then-Secretary of Labor Robert Reich traveled to Oklahoma City in April 1994 and personally served Dayton with a citation alleging 107 willful LOTO violations and proposing a penalty of roughly $7.5 million. Of those 107 violations, 98 were for failing to train individual Dayton employees to the “authorized” level. The remaining nine violations were for failing to develop adequate safety procedures for particular machines, failing to utilize LOTO procedures, failing to provide necessary locks and tags to authorized employees, and failing to conduct periodic inspections.
Dayton appealed the citation to the Occupational Safety and Health Review Commission, where it was referred to an administrative law judge. After hearing from 90 witnesses over 31 days of trial, the ALJ issued a decision in 1997 that affirmed each violation that had not been withdrawn by the Secretary. And though the ALJ found that Dayton’s “actions were consistent with a good faith belief and effort to comply with the LOTO standard throughout the Oklahoma City plant,” he characterized 37 of the violations as willful because Dayton knew its corporate parent, Bridgestone, had previously been cited under the LOTO standard for similar violations. Dayton Trie,
Both Dayton and the Secretary petitioned the Commission for review, and the Commission granted the petitions in March 1997. Then the parties waited, and waited, until September 2010, when a divided Commission affirmed all but one of the violations, and went beyond the ALJ ruling to find all of the violations willful. Dayton Trie,
II
The Administrative Procedure Act (APA) obligates an agency “to conclude a matter presented to it” “within a reasonable time.” 5 U.S.C. § 555(b). Dayton acknowledges that an agency’s failure to abide by Section 555(b) does not “require its order[ ] to be set aside in every or even most cases.” Pet. Reply Br. 17. But it submits that the order here should be set *1253 aside because the “Commission’s egregious delay in adjudicating [the] matter defeated] the entire purpose of the underlying enforcement action,” and “equity should intervene to prevent enforcement of a senseless order.” Id.
The Secretary claims Dayton’s argument stumbles out of the gate. She asserts that the APA remedy for a party aggrieved by agency delay is a petition to “compel agency action unlawfully withheld or unreasonably delayed,” 5 U.S.C. § 706(1), and Dayton’s failure to pursue that remedy during the pendency of its appeal precludes it from challenging the timeliness of the Commission’s order now. That reading of the APA is unsupportable. Section 706(1) does not state that a petition to compel is a party’s only option in the face of agency delay. Nor does it state that a petition to compel is a prerequisite for any future challenge to long-delayed agency action. As such, Section 706(1) does not restrict our authority to “set aside agency action ... found to be ... not in accordance with law,” id. § 706(2)(A), including agency action that does not conclude a matter “within a reasonable time,” id. § 555(b).
Although we are empowered to set aside the Commission’s order on the basis of delay, we decline to do so here. Yes, in the words of the Secretary herself, the Commission’s twelve-year delay was “excessive and deplorable.” Resp. Br. 43. But as Dayton admits—and its cited cases demonstrate—delay alone is not enough; it is the “consequenee[s] of the Commission’s delay” that dictate whether corrective action is needed. Pet. Reply Br. 18. And in this instance, the consequences of the Commission’s delay do not justify setting aside its chosen penalty.
Unlike the petitioner in
TNS, Inc. v. NLRB,
Dayton also fails to demonstrate that enforcement of the Commission’s penalty would be futile or nonsensical. Dayton relies on
NLRB v. Mountain Country Food Store, Inc.,
Dayton maintains enforcement of the penalty would be pointless because “OSHA penalties are meant to inflict pocket-book deterrence,”
Raspar Wire Works, Inc. v. Sec’y of Labor,
While the deterrent effect of a single penalty is difficult to assess with much precision, we are confident that enforcement of this penalty will have some effect on Bridgestone and employers in general. True, Bridgestone encouraged Dayton to review its LOTO compliance over a year before Dayton received its citation. But if Bridgestone must pay a penalty for LOTO violations committed by one of its divisions, perhaps in the future it will be more insistent when it encourages compliance with health and safety regulations. Although Bridgestone has a strong safety record, there is always room for improvement. As for other employers, the issuance of the underlying citation may well have had a deterrent effect, but the enforcement of the penalty will send the additional message that LOTO violators should expect to pay even when the Commission drags its feet.
Our willingness to enforce the Commission’s penalty should not be mistaken for approval of its “deplorable” conduct. Resp. Br. 43. The Commission does a disservice to both employers and employees when it fails to clarify health and safety standards promptly. Nevertheless, in this instance, the Commission’s delay did not render its penalty inequitable or inconsistent with the goals of the OSH Act, and we will not set aside an order without a compelling reason to do so.
III
Dayton argues in the alternative that the Commission’s finding of willfulness should be vacated because it lacks substantial supporting evidence. See 29 U.S.C. § 660(a). We agree.
A violation of the OSH Act can be “serious,” “not serious,” or “willful.” 29 U.S.C. § 666(a)-(c). For a willful violation, the OSH Act authorizes the Secretary to impose a maximum penalty of $70,000—ten times the maximum penalty for a serious or a not serious violation.
Id.
Yet despite defining what a serious violation is (and by negative implication, what a not serious violation is),
see id.
§ 666(k), the OSH Act does not define what a willful violation is.
See Am. Wrecking Corp. v. Sec’y of Labor,
We have defined “willful,” however, and our narrow definition reflects the potential severity of the OSH Act’s penalty. A willful violation is “an act done voluntarily with either an intentional disregard of, or plain indifference to, the Act’s requirements.”
Ensign-Bickford Co. v.
*1255
OSHRC,
Here, the Secretary argued before the ALJ that Dayton “either intentionally disregarded or was plainly indifferent to the requirements of the LOTO standard as a matter of corporate policy throughout the Oklahoma City facility.” ALJ Ruling,
On appeal, the Commission found that Dayton acted willfully, albeit on different grounds than did the ALJ. It found the “evidence [did] not support the [ALJ]’s decision to characterize ... particular citation items as willful” because the record was “silent regarding the actions of plant management after receiving the ... [Bridgestone] citation.” Commission Ruling,
The linchpin of the Commission’s willfulness determination is its finding that Mattocks either knew Dayton was non-compliant or was unwilling to investigate for fear of uncovering Dayton’s non-compliance. We think that finding is based more on speculation than evidence. Accordingly, the Commission’s willfulness characterization does not withstand our review.
The Commission does not cite a single piece of evidence indicating that Mattocks “was actually aware, at the time of the
*1256
violative act, that the act was unlawful.”
AJP Constr.,
Although there is some supporting evidence, there is not enough, particularly “when contradictory evidence is taken into account.”
Am. Wrecking Corp.,
The first two incidents occurred in 1992. After a safety training session, certain Dayton employees raised concerns about whether they should be treated as authorized employees instead of affected employees. A few months later, Bridgestone’s new safety director sent a memo to all Bridgestone safety personnel encouraging them to “revisit” their LOTO practices. Commission Ruling,
The third incident took place in 1993. In the Commission’s telling, Mattocks did nothing after Faye Kearney, an OSHA ergonomics inspector, toured the Oklahoma City plant and expressed her concerns about Dayton’s LOTO compliance for certain machines. Id. at *21-22. Setting aside the Commission’s decision to credit Kearney’s testimony over Mattocks’, see id. at *32-33 (Thompson, Comm’r, dissenting) (arguing Commission erred in this respect), and assuming Kearney told Mattocks what she claimed to have told her, Mattocks’ inaction was reasonable. Kearney was “an industrial hygienist” who “admitted that she specialized in health-related inspections, not safety-related inspections.” Id. at *33. Even Kearney’s OSHA supervisor discounted her concerns about Dayton’s LOTO compliance because he was uncomfortable with her level of expertise. Id. *1257 We cannot find Mattocks plainly indifferent for doing the same.
In response to the fourth event—the death of a Dayton employee in October 1993—Dayton managers “investigated how the accident occurred” and determined “LOTO was not ... relevant,” but “committed to reexamining the application of LOTO to Dayton’s entire operation.” Id. at *23. When the managers reminded Mattocks of this commitment, she conducted “some review of the LOTO standard” and concluded that Dayton was still in compliance. Id. Again, while Mattocks’ review may not have been as thorough as the Commission would have liked, it did not display plain indifference.
The fifth and final incident occurred in November 1993, when OSHA inspector George McCown came to the Oklahoma City plant to review Dayton’s LOTO compliance. Following the inspection, McCown “reviewed with [Mattocks] the alleged LOTO violations” in various departments, and “Mattocks never acted on McCown’s admonitions” before OSHA issued the underlying citation in April 1994.
Id.
at *23. Mattocks’ inaction in the face of McCown’s views is not sufficient proof of indifference. In an analogous situation, the Commission stated that “an employer is entitled to have a good faith opinion that his conduct conforms to regulatory requirements,” and “such conduct should not be construed as constituting a willful violation of the [OSH] Act merely because Labor holds a contrary opinion on the facts and advises the employer of that opinion.”
C.N. Flagg & Co., Inc.,
Indeed, what the ALJ acknowledged and the Commission dismissed was the possibility of good faith. The LOTO standard covered servicing and maintenance and exempted production processes. Because service and maintenance at the Oklahoma City plant was the responsibility of an independent company, McCowan concluded Dayton employees were not covered. Mattocks followed his lead. Dayton and the Secretary clearly disagreed about the scope of the exemption and the Secretary’s view prevailed. But a difference in interpretation—even a persistent one—is not synonymous with willfulness, particularly when, as here, the Commission relies on rulings issued after the underlying citation to resolve the interpretive dispute.
See
Commission Ruling,
Mattocks may not have displayed the kind of initiative we would expect when lives and limbs are at stake. But the evidence before the Commission did not establish that Mattocks “possessed a state of mind such that if [she] were informed of the standard, [she] would not care.”
AJP Constr.,
IV
The Commission lacked substantial supporting evidence for its finding that Dayton’s violations were willful. Accordingly, we vacate that portion of the Commission’s order and remand for the Commission to reassess the nature of Dayton’s violations and recalculate the appropriate penalty. We affirm the Commission’s order in all other respects.
So ordered.
Notes
. The Commission also stated its "affirmance of each cited violation will result in an abatement order directing Dayton to develop, document, and utilize distinct LOTO procedures for the unique equipment covered by each citation item." Commission Ruling,
