National Engineering & Contracting Company (National) petitions for review of a $400 fine levied against it by the Occupational Safety and Health Administration (OSHA) after an OSHA inspector found exposed metal bars at one of its construction sites. OSHA also cited National after its inspector discovered an extension cord stripped of insulation and an ungrounded electrical plug at the same location. National contends that the warrant used to obtain entry to its worksite was not based on probable cause and that the Secretary of Labor (Secretary) failed to meet his burden of proof in the ensuing administrative proceeding. We conclude that probable cause supported OSHA's warrant and that substantial evidence supported OSHA's determination of liability. We therefore deny the petition.

OSHA conducts a routine inspection program under a written policy to monitor compliance with workplace health and safety standards promulgated by the Secretary under the Occupational Safety and Health Act.1 OSHA Field Operations Manual, Instruction CPL 2.45B CH-1 at II-1 (1990), reprinted at Joint Appendix (JA) 13. It inspects construction worksites on a list randomly generated by a computer owned and operated by the University of Tennessee. Based on criteria whose neutrality National does not challenge the computer selects worksites from a commercially published list of current construction projects known as "Dodge reports." Id.2 On its application for an inspection warrant OSHA stated that the computer had chosen a bridge construction site along U.S. Route 50 at Cleves, Ohio (near Cincinnati) as one of the sites for inspection in April 1992. JA 7. At the worksite, National was the general contractor for the state of Ohio's Department of Transportation on the latter's bridge construction project.

OSHA assigned compliance officer John Collier to inspect National's worksite. Collier applied for a warrant from a magistrate judge of the United States District Court for the Southern District of Ohio. The warrant application indicated that OSHA planned to conduct its inspection as part of its inspection and investigation program and included a copy of OSHA's written policy as an exhibit. JA 6. Collier also attached a copy of the Dodge report for the Cleves construction site. JA 57. He attested that "[i]n accordance with OSHA regulation 29 C.F.R. [Sec.] 1903.4 an anticipatory inspection warrant is requested because the general contractor at the inspection worksite scheduled, National Engineering & Contracting Company, has a stated and written policy forbidding government inspection of their worksites without a valid inspection warrant." JA 8.

The magistrate judge issued a warrant on April 27, 1992 to inspect the Cleves site. Because of scheduling difficulties, another inspector, James Denton, actually carried out the inspection three days later, April 30. National's superintendent, William Delsignore, arrived at the site 90 minutes after Denton. Denton showed his credentials but did not mention the warrant. The National representative did not allow him to enter; instead he consulted with two other company officials. One hour later, National asked Denton to wait until it could bring its lawyers to the site. After consulting his supervisor, Denton refused. He then served the warrant on Delsignore and began his inspection. When Denton returned to conduct a second day of inspection, National presented him with a form notice of protest regarding the issuance and validity of the warrant. JA 122.

Denton found six violations of regulatory workplace standards, three of which are at issue here. First, he saw a carpenter working near a line of exposed vertical steel bars known as rebar. Although the bars were away from the main work area, Denton determined that they were likely to pose an impalement hazard to workers.3 Second, Denton found an extension cord located in the middle of the bridge from which the outer insulation cover had pulled loose from one end, leaving the inner wires (which were themselves insulated) exposed about one-half inch. Denton concluded that the cord posed an electrocution hazard because the inner wires could pull loose while being used.4 Third, Denton found that a fax machine in an office trailer had been improperly plugged into the power outlet. The three-pronged plug had been plugged into a two-prong adapter before being put into the socket, thus removing the grounding path.5 Denton cited National for all three violations.6

National contested the citations before an administrative law judge (ALJ) acting for the Occupational Safety and Health Review Commission (Commission or OSHRC). Although National contended that the warrant was invalid, the ALJ determined without extended discussion that it had been properly issued pursuant to OSHA's administrative plan. JA 190-91. On the merits, National declined to present evidence and moved for a directed verdict in its favor after OSHA presented its case. JA 192. The ALJ found that the extension cord and fax machine plug violations were not serious and assessed no penalty. JA at 192-98, 201. The ALJ found that the rebar violation was "serious" and fined National $400. JA 200. The Commission declined discretionary review of the ALJ's decision, which became final on June 7, 1993. JA 209.7

National's petition challenges the warrant and the sufficiency of the evidence supporting the ALJ's findings. As to the warrant, National argues that OSHA Inspector Collier did not include information demonstrating specifically how National was chosen for inspection under OSHA's administrative plan, he lacked personal knowledge of some statements in the warrant application and he misrepresented one fact included in the application. As a result, it contends, the warrant was not supported by probable cause.

The Supreme Court has explained that the showing necessary to establish probable cause for a routine inspection conducted as part of a regulatory compliance program is not as stringent as that required of a search for evidence of crime. "For purposes of an administrative search ... probable cause justifying the issuance of a warrant may be based not only on specific evidence of an existing violation but also on a showing that 'reasonable legislative or administrative standards for conducting an ... inspection are satisfied with respect to a particular [establishment].' " Marshall v. Barlow's, Inc., 436 U.S. 307, 320, 98 S. Ct. 1816, 1824, 56 L. Ed. 2d 305 (1978) (footnote omitted) (quoting Camara v. Municipal Court, 387 U.S. 523, 538, 87 S. Ct. 1727, 1735-36, 18 L. Ed. 2d 930 (1967)). To establish probable cause under Marshall, then, OSHA must demonstrate only that its inspection program is a neutral one and that, using those criteria, it selected National for inspection. In re Trinity Indus., Inc., 876 F.2d 1485, 1490 (11th Cir.1989). It is not disputed that OSHA's inspection program is a neutral one. In Marshall, the Supreme Court concluded:

A warrant showing that a specific business has been chosen for an OSHA search on the basis of a general administrative plan for the enforcement of the Act derived from neutral sources such as, for example, dispersion of employees in various types of industries across a given area, and the desired frequency of searches in any of the lesser divisions of the area, would protect an employer's Fourth Amendment rights.

Id. 436 U.S. at 321, 98 S. Ct. at 1825. As Collier attested in the warrant application, the inspection was to be conducted in accordance with OSHA's written policy, which is based primarily on the factors noted approvingly by the Supreme Court in Marshall. JA 7. See In re Establishment Inspection of Gilbert & Bennett Mfg. Co., 589 F.2d 1335, 1341-43 (7th Cir.) (finding probable cause established by similar attestation), cert. denied, 444 U.S. 884, 100 S. Ct. 174, 62 L. Ed. 2d 113 (1979). National complains instead that the warrant application did not manifest how National in particular was chosen for inspection under the program. While we have not previously addressed this question, other circuits have concluded that OSHA establishes probable cause by simply attesting that the worksite fits within the program. Pennsylvania Steel Foundry & Mach. Co. v. Secretary of Labor, 831 F.2d 1211, 1214-16 (3d Cir.1987) (citing Gilbert & Bennett ); Stoddard Lumber Co. v. Marshall, 627 F.2d 984, 988-89 (9th Cir.1980); Donovan v. Enterprise Foundry, Inc., 751 F.2d 30, 33 (1st Cir.1984); Trinity, 876 F.2d at 1492-93 & n. 4. We find these cases persuasive and fully consistent with the Supreme Court's reasoning in Marshall.

National relies on the holding in Brock v. Gretna Mach. & Ironworks, Inc., 769 F.2d 1110, 1112 (5th Cir.1985), that a warrant application must include documents demonstrating the means by which a specific inspection target was selected under OSHA's program. We decline to follow Brock in this regard and note, echoing the Eleventh Circuit, "no other circuit requires OSHA to append such documents to its warrant applications." Trinity, 876 F.2d at 1492. Moreover, the Fifth Circuit subsequently clarified its view, holding that

[t]he test is whether the magistrate can be satisfied that the target establishment was placed on the register by an application of the plan's specific, neutral criteria. The absence of an encoded establishment list will only be fatal to a warrant application where the target company can make a factual showing that it was placed on the list for reasons other than the application of specific, neutral criteria.

Industrial Steel Prods. Co. v. OSHA, 845 F.2d 1330, 1337 (5th Cir.1988) (footnote omitted). Collier's warrant application provided sufficient information to establish probable cause under this formulation, which is in the main consistent with the other circuits. Equally important, National has not alleged that it was selected for inspection by any means other than application of neutral criteria.

National also claims that the warrant was invalid because Collier did not have personal knowledge of each factual assertion in the warrant application. We find National's claim "unduly technical and restrictive" because "the affiants are entitled to rely on the actions and observations of their fellow OSHA personnel to supplement their own personal knowledge." Id. at 1335. Its argument that the warrant is void because Collier falsely represented that National had a written policy forbidding government inspection without a warrant is similarly unpersuasive. Although the record confirms that National's written policy was to cooperate with inspectors, JA 121, we believe that Collier's mischaracterization of National's policy does not defeat the validity of the warrant because it does not undercut any of the attestations supporting a finding of administrative probable cause.8 Tri-State Steel Constr., Inc. v. OSHRC, 26 F.3d 173, 178 (D.C.Cir.1994).9

Finally, National's challenge to the sufficiency of the evidence does not require extended discussion. We review the finding that an employer has violated workplace safety standards to determine whether it is supported by substantial evidence on the record as a whole. Simplex Time Recorder Co. v. Secretary of Labor, 766 F.2d 575, 587 (D.C.Cir.1975). National argues that OSHA failed to establish that employees were actually exposed to any of the hazards for which it was cited inasmuch as the likelihood of injury in each was negligible. The ALJ's report, however, contains substantial evidence to support each of the violations. JA 192-200. Moreover, we note that even "thin" evidence is sufficient to support a determination of liability on the record as a whole, Astra Pharmaceutical Prods., Inc. v. OSHRC, 681 F.2d 69, 74 (1st Cir.1982), especially in light of National's failure to present evidence in rebuttal.

For the foregoing reasons, the petition for review is

Denied.