Opinion for the Court filed by Chief Judge WALD.
WALD, Chief Judge:
Reduced to its bare essentials, this case decides whether a local union can force the Bureau of Prisons to bargain over the proposed imposition of a requirement that guards wear neckties (and, in some cases, blazers) on the job. Local 2441 of the American Federation of Government Employees (“AFGE” or the “Union”) petitions this court for review of an order of the Federal Labor Relations Authority (“FLRA” or the “Authority”) dismissing an unfair labor practice charge against the
United States Department of Justice, Bureau of Prisons (the “Bureau”). The charge, brought by the General Counsel of the Authority, alleged that the Bureau had violated §§ 7116(a)(1) and (a)(5) of the Federal Service Labor-Management Relations Statute (“FSLMRS” or the “statute”) by refusing to negotiate with the Union over the Bureau’s proposed changes in uniform for correctional officers at the Federal Correctional Institute in Morgantown, West Virginia (“FCI-Morgantown”). In dismissing the unfair labor practice charge, the Authority concluded that the Bureau’s uniform changes involved a “means of performing work,” and as such were excepted from the Bureau’s statutory duty to bargain. 5 U.S.C. § 7106(b)(1). Because we conclude that the Authority’s determination was neither arbitrary nor capricious and was supported by substantial evidence, we deny the petition for review.
I. Background
A.
The Statute and the Prevailing FLRA Interpretation of It
We introduce this knotty problem by laying out the relevant substantive legal standards governing federal service labor-management relations. Once employees in a unit of the federal government have chosen by majority vote to be represented by a particular labor organization, that labor organization becomes the exclusive bargaining representative of the unit employees. 5 U.S.C. § 7111(a). The agency is required by the FSLMRS to negotiate in good faith with that labor organization over “conditions of employment,” except for those particular matters that are excluded from the duty to bargain by federal law or government-wide rules or regulations.
New York Council, Ass’n of Civilian Technicians v. FLRA,
757 F.2d 502, 508 (2d Cir.),
cert. denied,
474 U.S. 846, 106 S.Ct. 137, 88 L.Ed.2d 113 (1985) (“ACT”); 5 U.S.C. §§ 7103(a)(12), 7114(a)(4), 7117(a). The term “conditions of employment” is defined broadly to include “personnel policies, practices, and matters ... affecting working conditions,” 5 U.S.C. § 7103(a)(14). If an agency refuses to negotiate in good faith with an exclusive bargaining representative as to matters covered by the duty to bargain, the agency is guilty of an unfair labor practice. 5 U.S.C. § 7116(a)(1), (a)(5).
But there are certain matters excluded from the duty to bargain; in particular, the FSLMRS contains a “management rights” provision. 5 U.S.C. § 7106. Section 7106(a) lists matters over which an agency is not permitted to bargain. Section 7106(b)(1) sets out matters over which bargaining may take place “at the election of the agency.” Included in the latter category are decisions concerning the “methods, and means of performing work.” 5 U.S.C. § 7106(b)(1). As to these decisions, the agency is permitted but not required to negotiate with the labor organization.
Id.; see American Federation of Gov’t Employees, Local 3013 v. FLRA,
762 F.2d 183, 183 (1st Cir.1985);
ACT,
757 F.2d at 508.
The FLRA has established a two-pronged test for determining whether § 7106(b)(1) excepts a proposed practice from the agency’s
duty
(though not its authority) tó bargain. The first prong examines the agency’s proposed change of policy, while the second examines the union’s counter-pro-posáis.
See United States Dept. of Justice, INS,
31 F.L.R.A. 145, 152-53 (1988).
Under the first prong of the inquiry, the Authority asks whether there exists a “direct and integral relationship” between the agency’s proposed new practice and the accomplishment of the agency’s mission. Appendix (“App.”) 18;
United States Dept. of Justice, INS,
31 F.L.R.A. at 152. The Authority has elaborated on this “direct and integral” test by stating that a “means of performing work” under § 7106(b)(1) encompasses “anything used to attain or make more likely the attainment of a desired end, and ... refers to ‘any instrumentality, including an agent, tool, device, measure, plan, or policy used by the agency for the accomplishing or furthering of the performance of its work.'
” Division of Military and Naval Affairs, State of New York,
15 F.L.R.A. 288, 291 (1984) (quoting
National Treasury Employees Union, 2
F.L.R.A. 255, 258 (1979)),
aff'd sub nom. ACT,
757 F.2d 502 (2d Cir.),
cert. denied,
474 U.S. 846, 106 S.Ct. 137, 88 L.Ed.2d 113 (1985);
see
App. 18.
If the Authority determines that the proposed agency policy does bear a “direct and integral relationship” to the agency’s mission, then it proceeds to the second prong of the inquiry, asking whether the counter-proposal advanced by the union would “directly interfere” with the mission-related purpose of the agency’s new practice. App. 20-21;
American Federation of Gov’t Employees,
25 F.L.R.A. 1028,1031 (1987). If it would, then the agency has no duty to bargain; if it would not, then the agency must bargain over the counterproposal and is guilty of an unfair labor practice so long as it refuses to do so.
Id.
In applying the “direct interference” test, the Authority has required agencies to bargain over union proposals that would tinker with agency policy without defeating its purpose.
See United States Dept. of Justice, INS,
31 F.L.R.A. at 147, 153;
American Federation of Gov’t Employees,
25 F.L.R.A. at 1030-31. More disruptive adjustments to agency policy have been held to be outside the agency’s duty to bargain, on grounds of “direct interference.”
See National Treasury Employees Union,
8 F.L.R.A. 3, 4-5 (1982). And, not surprisingly, the Authority has held consistently that a union proposal to abolish an agency policy or render it merely voluntary would constitute direct interference and thus falls outside the duty to bargain.
See American Federation of Gov’t Employees, Local 217,
21 F.L.R.A. 62, 67 (1986);
National Treasury Employees Union,
8 F.L.R.A. at 3-4;
National Treasury Employees Union,
2 F.L.R.A. at 260.
The FLRA’s “two-pronged” interpretation of § 7106(b)(1) is not at issue in this case.
See, e.g., ACT,
757 F.2d at 509-10 (finding the “direct and integral relationship” test consistent with congressional intent to make § 7106(b)(1) a narrow exception to the duty to bargain);
see also
Union Br. 11; Reply Br. 7. The Union challenges only the Authority’s application of the test to the facts of the case.
B.
Facts of This Case
It is time, then, to roll up our sleeves and grapple with the FCI-Morgantown dispute. FCI-Morgantown is a low-security prison populated by some 350-400 inmates convicted of nonviolent federal crimes. App. 11, 88-89. Correctional officers there are assigned to various posts, some of which involve daily contact with the public, others with inmates only. App. 12, 69-71, 83-84. Local 2441 of the AFGE is the exclusive representative of the employees of FCI-Morgantown.
The uniform dispute which is the centerpiece of this case has a complicated history. At all relevant times there has been a national uniform for Bureau of Prisons guards. This standard uniform consisted of a navy blue blazer, charcoal gray pants, a blue, white or yellow shirt (long-sleeves in winter and short-sleeves in summer), black shoes, black socks, a black belt, and a black or maroon necktie. App. 12, 327-36. In fact, however, FCI-Morgantown did not observe or enforce all the requirements of the standard uniform for several years pri- or to October 1985. Specifically, most officers did not wear the blazer and necktie while on duty. All of them did, however, wear the regulation charcoal pants, blue, white or yellow shirt, black shoes, black socks, and black belt. App. 12-13, 63-64, 81-83, 106-07, 158-59.
On or about October 30, 1985, the management of FCI-Morgantown issued draft regulations (the “Proposed Regulations”) setting out changes in
required
uni
forms. App. 285-88.
The key components of the Proposed Regulation wardrobe were as follows: (i) specific winter and summer uniforms, (ii) a long-sleeved shirt and necktie throughout the winter season (an officer could, at his option, wear a blazer), (iii) neckties always to be worn with long-sleeved shirts, (iv) neckties whenever blazers are worn, (v) blazers and neckties year-round to be worn by officers who occupy posts involving contact with the public, and (vi) no uniforms worn in public except while on duty, on official business, or commuting to and from work. App. 285-86.
On or about November 27, 1985, the Union delivered to the warden at FCI-Morgantown a written request to negotiate over the Proposed Regulations. App. 289. The warden responded on December 3 that the Bureau of Prisons would negotiate as to the “impact and implementation” of the uniform changes, but would not negotiate over the substance of the changes. App. 13, 71-74, 289-90.
The Union responded on December 11, contending that its right to negotiate was not limited to impact and implementation matters. App. 13, 75-76, 291-95. Attached to the Union’s written response was a set of counter-proposals, App. 292-94, stating that the Union “oppose[s] the summer/winter concept and the mandatory use of neckties” and proposing that the paragraph establishing a wintertime necktie requirement for all officers be deleted. App. 293. The Union also proposed deleting the requirement of blazers and neckties for officers in daily contact with the public.
Id.
The next day, the warden wrote the Union that the substance of the Proposed Regulations was nonnegotiable and asserted that the Union’s counter-proposal to make blazers and neckties optional was nonnegotiable as well. (He did, at the same time, indicate that the Bureau deemed several of the Union’s other counter-proposals acceptable and would incorporate them into the regulations.) App. 77, 296. Although the warden later said he was willing to bargain over the impact and implementation of the Proposed Regulations, no negotiations took place before issuance of the final version of the regulations (the “Revised Regulations”) on February 2, 1986, which were in all but one relevant respect identical to the proposed ones listed above. App. 14, 79.
The clothing requirements set out in the Revised Regulations went into effect immediately. App. 297.
C.
Proceedings Before the Authority
The General Counsel of the FLRA filed an unfair labor practice complaint against the Bureau, alleging that it had violated §§ 7116(a)(1) and (a)(5) of the statute by refusing to negotiate over the substance of the Proposed Regulations, by refusing to negotiate over the Union’s counter-proposals, and by unilaterally implementing the Revised Regulations. App. 10-11, 309-19. Before the ALJ who heard the case, the
General Counsel argued that the uniform changes were not a “means of performing work” under § 7106(b)(1), because the Bureau had failed to show that the absence of blazers and neckties had contributed to inmate relations problems at FCI-Morgan-town. App. 18.
Following the hearing, the AU concluded that the Bureau had not engaged in an unfair labor practice and dismissed the complaint. App. 10-22. After outlining the legal standards discussed in Part I.A. of this opinion,
supra,
the AU determined that the mission of FCI-Morgantown is “to provide for the care and custody of Federal inmates.” App. 19. The Bureau’s changes in uniform requirements, the AU observed, “were designed to improve the image of Correctional Officers with the inmates and public and facilitate their cooperation.” App. 19. According to the AU, this established a “direct relationship” between the new uniform requirements and the Bureau’s mission. App. 19-20. He characterized the Union’s counter-proposals as insisting “that no change be made, that is, that employees continue to be able to elect [whether] to wear the blazer and tie in all circumstances.” App. 20. This, he held, would “totally abrogate” the Bureau’s management rights under § 7106(b)(1).
Id.
Ultimately, the AU concluded, the facts of the present case satisfied the “means of performing work” language of § 7106(b)(1). App. 19-20. Since the Bureau could elect not to bargain, he concluded, its failure to negotiate did not violate §§ 7116(a)(1) and (a)(5) of the statute. App. 20.
On review, the Authority affirmed the AU’s dismissal of the complaint, with one member in dissent.
United States Dept. of Justice, Kennedy Center, Federal Correctional Institution, Bureau of Prisons,
29 F.L.R.A. 1471 (1987); App. 1-6. The decision of the Authority adopted the findings and conclusions of the ALJ. App. 1.
II. Discussion
A.
Standard of Review
The FSLMRS requires that orders of the FLRA be reviewed in accordance with § 706 of the Administrative Procedure Act, 5 U.S.C. § 706.
Department of the Treasury, Bureau of Alcohol, Tobacco and Firearms v. FLRA,
857 F.2d 819, 820-21 (D.C.Cir.1988); 5 U.S.C. § 7123(c). Thus, an FLRA decision is to be set aside only if it is “arbitrary, capricious, an abuse of discretion, or otherwise not in accordance with law.” 5 U.S.C. § 706(2)(A).
See Department of the Treasury,
857 F.2d at 821;
EEOC v. FLRA,
744 F.2d 842, 847 (D.C.Cir.1984),
cert. dismissed,
476 U.S. 19, 106 S.Ct. 1678, 90 L.Ed.2d 19 (1986). Findings of fact are conclusive “if supported by substantial evidence on the record considered as a whole.” 5 U.S.C. § 7123(c). As with the National Labor Relations Board, the FLRA’s reasonable inferences are to be deferred to on review.
See NLRB v. United States Postal Service,
841 F.2d 141, 144 (6th Cir.1988). On the other hand, the reviewing court must consider the entire record, including evidence opposed to the FLRA’s view.
ACT,
757 F.2d at 512;
see Universal Camera Corp. v. NLRB,
340 U.S. 474, 488, 71 S.Ct. 456, 465, 95 L.Ed. 456 (1951).
B.
Direct and Integral Relationship Test
The AU’s opinion, which was adopted by the Authority, employed the FLRA’s traditional two-pronged test for determining whether an agency has to negotiate under § 7106(b)(1); it concluded that the new uniforms were a “means of performing work.” We begin by determining whether substantial evidence exists in the record taken as a whole to support the AU’s conclusion that the new uniform requirements were “directly and integrally related” to the Bureau’s mission. We hold that the evidentiary support is sufficient.
The mission of FCI-Morgantown is, as the AU stated and as the Union acknowledges, “to provide for the care and custody of Federal inmates.” App. 19; Union Br. 16. The Bureau’s purpose for imposing the new uniform standards was to improve the image of correctional officers among the inmates and among the general public. This assertedly would enable correctional officers to receive a greater degree of coop
eration from the inmates and the public. App. 16.
A witness testifying for the Bureau provided the needed link between “image” and “cooperation.” Carl Swick, a labor relations specialist for the Bureau, was asked in what way the new uniform standards could be considered methods and means of performing work. He responded as follows:
[The new uniform] does two things. One ... has to do with the image that we present to the inmate population. We are interested in a less threatening, less authoritarian type impact for correctional officers working with the inmates. We believe that that helps the employees from the standpoint that the inmates are more inclined to follow their instructions [and] to interact in a less threatened or less hostile manner if the employees are dressed in the current uniform than in the previous uniform.
... [As to officers in posts involving contact with the public], whenever one of our employees is visible in the community or is visible to the community, the uniform he or she is wearing presents an image of the Bureau of Prisons, which ties in with the way the community responds to us. It impacts on the way we are able to do our duties, to perform our duties with the inmates. It has to do with a favorable image in the community, a favorable image with the press. When the community or the press gets a negative view of a correctional organization, there is an awareness on the part of the inmates who read the newspapers carefully and who try to find out how they are viewed in the public and by the public and in the press.
All of the contact or visibility issues that are discussed and are considered in dictating which posts should wear a tie, for instance, or should wear a blazer, have to do with how our officers are going to be received or our employees are going to be received by the inmates ... [or] how they are going to be received by members of the public with whom they come in contact....
App. 153-55.
To be sure, Mr. Swick’s testimony is not without weaknesses. For example, the context suggests that he held the erroneous impression that the prior uniform at FCI-Morgantown was a police- or military-style uniform.
See, e.g.,
App. 152-53 (Mr. Swick’s reference to the new uniforms as “less authoritarian”). Nonetheless, his misunderstanding as to the prior uniforms does not detract from his testimony that inmates do respond well to officers dressed in the new style of uniform. His testimony recounted that uniforms do affect inmate attitudes and that those attitudes translate directly into inmates’ willingness to follow directions. Measures that make inmates “more inclined to follow [officers’] instructions” are directly and integrally related to the mission of a prison. As to officers in contact with the public, Mr. Swick’s testimony was even stronger: it stressed the links between the uniforms worn by officers in public-contact posts, the opinions of the public and press, and the attitudes of inmates. Overall, Mr. Swick’s testimony is sufficient to ground a finding that there is a “direct and integral relationship” between uniforms that include neckties (and, for officers in public-contact posts, blazers) and the capability of correctional officers to control the inmates.
Common sense complements Mr. Swick’s testimony. The Authority could rationally conclude that guard-inmate relations affect prison morale and that, all other things being equal, guards inspire more respect if they wear uniforms that convey a polished (albeit relaxed), official-looking image. (In
the words of George M. Cohan, “You won’t do any business, if you haven’t got a band; the folks expect a street parade and uniforms so grand.”) We accord weight to the expertise of the Authority so long as its conclusions are rationally based, grounded on articulated facts and consistent with the FSLMRS.
See NLRB v. Yeshiva University,
444 U.S. 672, 691, 100 S.Ct. 856, 867, 63 L.Ed.2d 115 (1980).
The Union did present arguments and evidence to counter the Bureau’s assertions, but the Authority found them wanting. Union witnesses testified that they knew of no circumstances under which the lack of blazers and neckties had interfered with job duties. App. 64-65, 120-21, 181-82;
see also
Union Br. 29 (emphasizing lack of evidence linking past discipline problems to uniforms). We fail, however, to see how the “direct and integral” standard requires such proof. The Second Circuit did not require such evidence in
ACT,
757 F.2d 502, where civilian technicians in the New York National Guard challenged the imposition of a requirement that they wear uniforms. The union in that case advanced an identical argument that the lack of uniforms had not interfered with technicians’ duties in the past, but it was rejected by the court, which stated that the statutory standard is met where a policy is “used to attain or make more likely the attainment of a desired end” or is “used by the agency for the accomplishing or furthering of the performance of its work.”
Id.
at 509-10. Similarly, we do not find that the FLRA must document the need for uniforms with past instances of trouble in order to find the “direct and integral relationship” required by § 7106(b)(1). Put simply, the fact that FCI-Morgantown is a low-security prison without a history of uprisings does not negate the Bureau’s compelling interest in maintaining and enhancing healthy guard-inmate relations in the future.
The Union also argues that the FLRA’s “direct and integral relationship” finding between uniforms and agency mission is belied by the Bureau’s policy of still making neckties optional for certain officers wearing short-sleeved shirts in the summertime. The Union’s argument would fare better if “integral” meant “indispensable,” but neither the FLRA nor the Second Circuit has read the “direct and integral relationship” test so narrowly. Making neckties optional in the warm summer months is a reasonable concession to the exigencies of prison life: the main goal of uniform uniforms — summer or winter — remains intact.
The Authority’s finding of a direct and integral relationship in this case was consistent with FLRA precedent. The Authority has held uniform clothing requirements to be “means of performing work” under § 7106(b)(1) where it has been shown that they could help accomplish or further the performance of an agency’s work. Thus, civilian military technicians in the National Guard were required
sans
negotiation to wear uniforms, because uniforms would “foster military discipline, promote uniformity, encourage
esprit de corps,
increase the readiness of the military forces for early deployment and enhance identification of the National Guard as a military organization.”
Division of Military and Naval Affairs, State of New York,
15 F.L.R.A. at 293. Officers of the Immigration and Naturalization Service were required to wear badges because they would “provide for the identification of ... officers and ... facilitate the work of supervisory personnel in making assignments for the officers, and in conducting on-site inspections.”
American Federation of Gov’t Employees,
8 F.L.R.A. at 350. And Customs Service officers were required to wear nameplates, because they would “personalize the Customs Service and ... facilitate the public’s dealings with uniformed officers.”
National Treasury Employees Union,
2 F.L.R.A. at 257. On the other hand, where an agency offers no evidence
linking clothing to work performance, it cannot look to § 7106(b)(1) for relief from the duty to bargain.
See Veterans Administration,
23 F.L.R.A. 278, 297 (1986) (agency offered no evidence that wearing of nonuniform sweaters by hospital housekeeping aides would interfere with work).
In sum, we find substantial evidence in the record to support the FLRA finding of a “direct and integral relationship” between neckties (and, for officers in public-contact posts, blazers), better inmate morale, and the Bureau’s mission of providing for the care and custody of inmates. Even the lone dissenter on the FLRA accepted the Authority’s determination as to the first prong, the relationship between the uniform requirement and the “means of performing work” test.
C.
Direct Interference Test
The second prong of the § 7106(b)(1) test examines the counter-proposals advanced by the Union and asks whether acceptance of them would “directly interfere” with the purpose behind the disputed requirements. The Authority concluded on this record that the Union’s proposals would so interfere. Here again, we find the Authority’s conclusion to be supported by substantial evidence.
To recapitulate, the Union proposed eliminating both the requirement that all officers wear neckties in winter and the requirement that officers in public-contact posts wear blazers and neckties year-round. App. 293. In the AU’s words, the Union’s proposal was “that no change be made, that is, that employees continue to be able to elect [whether] to wear the blazer and tie in all circumstances.” App. 20.
The AU concluded — rationally, we believe — that the Union’s counter-proposals would directly interfere with the accomplishment of the Bureau’s purpose. This conclusion is virtually a truism, given the results of the first prong of the test. Having found that a necktie requirement (and, for officers in public-contact posts, a blazer requirement) was directly and integrally related to the performance of the Bureau’s mission, it follows naturally — indeed reflexively — that the Union’s proposal to eliminate those requirements completely would directly interfere with the Bureau’s purpose.
See
App. 20 (ALJ: Union proposal “would totally abrogate” Bureau's rights under § 7106(b)(1)). The reflexive relationship between the first and second prongs of the test has been implicitly recognized in prior FLRA decisions involving union counter-proposals that called for a return to the
status quo ante. See American Federation of Gov’t Employees, Local 217,
21 F.L.R.A. 62, 67 (1986) (proposal to make wearing of uniform optional for certain employees would directly interfere with § 7106(b)(1) rights, given finding of direct and integral relationship);
National Treasury Employees Union,
8 F.L.R.A. at 3-4 (same for proposal to make wearing of uniform hats optional for certain employees);
National Treasury Employees Union,
2 F.L.R.A. at 260 (proposal to make wearing of nameplates optional “would, in effect, empower employees to nullify” the nameplate requirement and thus would directly interfere with the mission-related purpose of the nameplates). This is not to say that the second prong is meaningless. In most cases, the “direct interference” test would have teeth,
ie.,
if the Union had proposed variations to the new uniform requirements, such as cotton poplin blazers rather than wool ones, or gray instead of navy blue ones. By proposing the complete elimination of blazer and necktie requirements, however, the Union preordained the result of the application of the second prong of the § 7106(b)(1) test.
Again, as with the first prong of the test, we find the Authority’s decision here to be consistent with its prior rulings. FLRA precedents make clear that the aim of the “direct interference” prong of the test is to inquire whether a union counter-proposal permits the accomplishment of the agency’s mission-related purpose while modifying some particulars of its policy. Thus, the INS purpose of identifying officers for administrative purposes would not be defeated if the identification plates bore numbers rather than officers’ names.
American Federation of Gov’t Employees,
8 F.L.R.A. at 350. The Customs Service purpose
of personalizing relations with travelers would not be defeated if the identification plates bore first names and last initials, or even pseudonyms.
National Transportation Employees Union,
2 F.L.R.A. at 261. The INS purpose of making officers’ appearance command respect and cooperation would not be defeated by having officers wear green denim jeans “essentially identical ... in appearance” to the standard uniform trousers.
United States Dept. of Justice, INS,
31 F.L.R.A. at 147, 153. And the purpose of making firefighters identifiable would not be defeated by allowing tee-shirts and ballcaps with agency insignia to be worn when officers are not in contact with the public.
American Federation of Gov’t Employees,
25 F.L.R.A. at 1030-31. All of these cases are clearly distinguishable from this one for the simple reason that the Union here did not present a limited counter-proposal but instead proposed that guards be given the option of eliminating neckties and blazers altogether. Thus, the Authority’s ruling in the present case did not swerve from the path of its prior decisions.
Lastly, we reject the argument raised by the dissenting member of the FLRA, and by the Union before this court, that the elimination of a necktie requirement for officers in nonpublic posts would not directly interfere with the Bureau’s purpose.
See
App. 5-6 (dissenting opinion of member McKee); Union Reply Br. 7-9. To begin with, the Union never advanced a proposal that neckties be retained for officers in public-contact posts and eliminated only for officers in nonpublic posts.
See
App. 22 (AU reference to the absence of such a counter-proposal). Where a union’s broad proposal would directly interfere with an agency’s purpose, we will not divide the proposal up and order the agency to bargain over the noninterfering portions of it. To do so would charge an agency with an unfair labor practice for refusing to bargain over a counter-proposal that was never presented to it. But, more fundamentally, our conclusion that the Bureau made its case that the necktie requirement is directly and integrally related to its purpose necessarily compels the conclusion that its elimination would directly interfere with that purpose.
III. Conclusion
Substantial evidence supports the FLRA’s determination that neckties and blazers are directly and integrally related to FCI-Morgantown correctional officers’ performance of their work. Second, the Authority’s determination that the Union counter-proposals to eliminate both requirements would directly interfere with the Bureau’s purpose in imposing the uniform requirements was similarly supported by substantial evidence. Consequently, Thoreau’s sartorial advice — “beware of all enterprises that require new clothes” — notwithstanding, the petition for review is
DENIED.