Partial zero-emissions vehicle
A partial zero-emission vehicle, in the United States, is an automobile that has zero evaporative emissions from its fuel system, has a 15-year (or at least 150,000-mile) warranty on its emission-control components, and meets SULEV tailpipe-emission standards. == Definition and history == In California, PZEVs have their own administrative category for low-emission vehicles.
Source: Wikipedia — Partial zero-emissions vehicle (CC BY-SA 4.0)