What is the earliest year a vehicle must be manufactured to require a gas cap pressure test in Cumberland County?

The requirement for a gas cap pressure test in Cumberland County applies to vehicles manufactured in 1974 and later. This regulation is designed to ensure that vehicles are not emitting excess vapors that can contribute to air pollution. The testing helps verify that the gas cap maintains proper sealing, preventing fuel vapors from escaping into the atmosphere.

Vehicles manufactured before this year, such as those from 1970 or earlier, are not subjected to this specific testing requirement since regulations prior to 1974 lacked the stringent emissions standards established later. Therefore, the requirement begins with vehicles from 1974 onward. This aligns with the introduction of stricter emissions standards that aimed to improve air quality and reduce environmental impacts from vehicles.