40 CFR 90.1207 - Entry and access.
(a) To allow the Administrator to determine whether a manufacturer is complying with the provisions under this subpart, EPA enforcement officers or their authorized representatives, upon presentation of credentials, shall be permitted entry, during operating hours, into any of the following places:
(1) Any facility where engines undergo or are undergoing aging, maintenance, repair, preparation for aging, selection for aging or emission testing.
(2) Any facility where records or documents related to any of activities described in paragraph (a)(1) of this section are kept.
(3) Any facility where any engine that is being tested or aged, was tested or aged or will be tested or aged is present.
(b) Upon admission to any facility referred to in paragraph (a) of this section, EPA enforcement officers or EPA authorized representatives are authorized to perform those activities set forth in § 90.705 (b) and also to inspect and make copies of records related to engine aging (service accumulation) and maintenance.
(c) The provisions of § 90.705(c), (d), (e), (f) and (g) also apply to entry and access under this subpart.