The state board may exempt from such specifications those classifications of motor vehicles for which the state board determines the specifications are technologically infeasible.
The state board also may waive the provisions of this subdivision for any 1977 model year gasoline-powered motor vehicle, provided that the state board makes a finding, based upon evidence presented by the manufacturer of such vehicle, that inadequate lead time exists for any required vehicle redesign. The state board may make such waiver applicable only to specified body styles of such a vehicle.
Ca. Health and Saf. Code § 43835