10 CFR § 490.7
Relationship to other law
June 9, 2020
(a) Nothing in this part shall be construed to require or authorize sale of, or conversion to, light duty alternative fueled motor vehicles in violation of applicable regulations of any Federal, State or local government agency.
(b) Nothing in this part shall be construed to require or authorize the use of a motor fuel in violation of applicable regulations of any Federal, State, or local government agency.