Which type of inspection requires a gas cap pressure test in Cumberland County?

A gas cap pressure test is an important component of emissions testing, as it helps ensure that the fuel system is sealed properly, which is crucial for preventing fuel evaporation and contamination. In Cumberland County, a Class E inspection specifically addresses the emissions control system of vehicles, requiring the gas cap pressure test to confirm that the cap maintains the necessary pressure to keep the fuel system sealed. This is particularly relevant for vehicles that fall under certain environmental regulations aimed at reducing air pollution.

The other inspection types may cover a range of safety and mechanical checks but do not include the specific requirement for a gas cap pressure test, focusing instead on different aspects of vehicle performance and compliance. Therefore, the Class E inspection stands out as the one that mandates this particular test.