Regulacje i polityka gospodarcza · 31.12.2003

California State Motor Vehicle Pollution Control Standards; Within the Scope Requests; Opportunity for Public Hearing and Comment

The California Air Resources Board (CARB) has notified EPA that it has approved amendments to its regulations establishing certification requirements and procedures for heavy-duty diesel engines and vehicles. The amendments require heavy-duty engines and vehicles (except urban buses) to meet a new mandatory oxides of nitrogen (NO X ) standard in 1998 and subsequent model years and establish optional NO X standards beginning with the 1995 model year. CARB's amendments also provide a new definition of useful life for these vehicles and require new information within California's motor vehicle emission control label. CARB requests that EPA confirm CARB's finding that its amendments are within-the-scope of previous waivers issued by EPA under section 209(b) of the Clean Air Act (Act), 42 U.S.C. 7543(b), including a waiver of Federal preemption for California's heavy-duty diesel powered engines and vehicles, which EPA approved on March 4, 1988. CARB has also notified EPA that it has approved amendments to its regulations establishing certification requirements and procedures for heavy-duty diesel engines and vehicles defined as urban buses. These amendments update the emission standards