Code of Federal Regulations Title 40. Protection of Environment § 40.92.503 General Requirements

(a) Manufacturers (and remanufacturers, where applicable) shall test production line locomotives or locomotive engines using the test procedures specified in § 92.506. The Administrator may require manufacturers and remanufacturers to conduct production line testing on locomotives. If the Administrator determines that locomotive testing is required, he/she shall notify the manufacturer or remanufacturer, and shall specify in such notice the time period in which the manufacturer or remanufacturer shall complete such testing.

(b) Remanufacturers of locomotives and locomotive engines shall conduct audits pursuant to the requirements of § 92.511 to ensure that remanufactured locomotives and locomotive engines comply with the requirements of this part.

(c) Upon request, the Administrator may also allow manufacturers (and remanufacturers, where applicable) to conduct alternate production line testing programs, provided the Administrator determines that the alternate production line testing program provides equivalent assurance that the locomotives and locomotive engines that are being produced conform to the provisions of this part. As part of this allowance or for other reasons, the Administrator may waive some or all of the requirements of this subpart.