The EPA has sent three California Air Resources Board (CARB)
Clean Air Act rule waivers to Congress for review under the
Congressional Review Act (CRA). If Congress rejects them, CARB
won’t be able to enforce the related regulations:
Advanced Clean Trucks (ACT) – Requires
manufacturers to sell more zero-emission medium- and heavy-duty
trucks.
Advanced Clean Cars II (ACC II) – Sets
stricter emissions rules for passenger vehicles.
Omnibus NOx Regulations – Reduces nitrogen
oxide emissions from trucks.
The ACT rule matters most to counties because it ties into CARB’s
Advanced Clean Fleets (ACF) rule, which mandates local
governments buy ZEVs when replacing fleet vehicles. However, with
ZEV manufacturers struggling and demand slowing, overturning the
ACT rule could leave counties without the required vehicles.
CSAC is closely monitoring the situation and will continue
advocating for counties.
