(a) Upon written request with supporting documentation, EPA will make written determinations as to whether certain locomotives are excluded from applicability of this part. Any locomotives that are determined to be excluded are not subject to the regulations under this part. Requests to determine whether certain locomotives are excluded should be sent to: Group Manager, Engine Compliance Programs Group, Engine Programs and Compliance Division U.S. Environmental Protection Agency, 6403-J, 1200 Pennsylvania Ave., NW., Washington, DC 20460.

(b) EPA will maintain a list of models of locomotives that have been determined to be excluded from coverage under this part. This list will be available to the public and may be obtained by writing to the address in paragraph (a) of this section.

(c) In addition to the locomotives excluded in paragraph (a) of this section, certain vehicles are not subject to the requirements and prohibitions of this part because they are excluded from the definitions of “locomotive” and/or “new locomotive” in §92.2.