40 CFR 204.4 - Inspection and monitoring.
(a) Any inspection or monitoring activities conducted under this section shall be for the purpose of determining (1) whether test products are being selected and prepared for testing in accordance with the provisions of these regulations, (2) whether test product testing is being conducted in accordance with these regulations, and (3) whether products being produced for distribution into commerce comply with these regulations.
(i) To inspect and monitor test product manufacture and assembly, selection, storage, preconditioning, noise emission testing, and maintenance, and to verify correlation or calibration of test equipment;
(ii) To inspect products prior to their distribution in commerce;
(d) For purposes of this section:
(1) An “EPA Enforcement Officer” is an employee of the EPA Office of Enforcement who displays upon arrival at a facility or site the credentials identifying him as such an employee and a letter signed by the Director, Noise Enforcement Division designating him to make the inspection.
(2) Where test product storage areas or facilities are concerned, “operating hours” shall mean all times during which personnel other than custodial personnel are at work in the vicinity of the area or facility and have access to it.
(3) Where facilities or areas other than those covered by paragraph (d)(2) of this section are concerned, “operating hours” shall mean all times during which product manufacture or assembly is in operation or all times during which product testing or maintenance, production, or compilation of records is taking place, or any other procedure or activity related to selective enforcement audit testing or to product manufacture or assembly is being carried out.
(e) The manufacturer shall admit to a facility or site an EPA Enforcement Officer who presents a warrant authorizing entry. In the absence of such warrant, entry to any facility or site under this section will be only upon the consent of the manufacturer.