40 CFR § 90.911
Submission of exemption requests
June 9, 2020
Requests for exemption or further information concerning exemptions and/or the exemption request review procedure should be addressed to: Group Manager, Engine Compliance Programs Group, Engine Programs and Compliance Division (6403J), Environmental Protection Agency, Washington, DC 20460.
[64 FR 15252, Mar. 30, 1999]