34 Pa. Code § 9.206
Contractors shall afford the Secretary or his authorized representative access to their premises and to the records which they are required to maintain under § 9.208 (relating to records of employment) at such reasonable times as the Department deems necessary for the enforcement of the act. Contractors shall further permit the Secretary or his authorized representative to interrogate any employe in the place of employment and during working hours with respect to the contractors' records and any other matter relevant to the enforcement of the act. Where such records are maintained at a central record keeping office outside of the Commonwealth, such records shall be made available for inspection at the place of employment within seven calendar days following verbal or written notice from the Secretary or his authorized representative.
34 Pa. Code § 9.206
This section cited in 34 Pa. Code § 9.209 (relating to violations).