California State Motor Vehicle Pollution Control Standards; Advanced Clean Cars II Regulations; Request for Waiver of Preemption; Opportunity for Public Hearing and Public Comment

Riepilogo

The California Air Resources Board (CARB) has notified the Environmental Protection Agency (EPA) that it has adopted regulations applicable to new 2026 and subsequent model year (MY) California on- road light- and medium-duty vehicles, hereinafter the Advanced Clean Cars II (ACC II) regulations. The ACC II regulations include two sets of requirements, one for conventional vehicles powered by internal combustion engines and one for zero-emission vehicles (with plug-in hybrid electric vehicles subject to both sets). By letter dated May 22, 2023, CARB submitted a request that EPA grant a waiver of preemption under section 209(b) of the Clean Air Act (CAA) for the ACC II regulations. This notice announces that EPA has scheduled a public hearing concerning California's request and that EPA is accepting written comment on the request.