Approval and Promulgation of Implementations Plans; California Air Resources Board-In-Use Heavy-Duty Diesel-Fueled Truck and Bus Regulation, and Drayage Truck Regulation
air-emissions · Rule · Published 2012-04-04 · Effective 2012-05-04 · CA · 77 FR 20308
Document
Document number
2012-7023
Federal Register citation
77 FR 20308
CFR reference
40 CFR 52
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
2012-04-04
Effective date
2012-05-04
State
CA
EPA docket
EPA-R09-OAR-2011-0544
Abstract
EPA is taking final action to approve a revision to the California State Implementation Plan (SIP) submitted by the California Air Resources Board (CARB or Board). This revision concerns two regulations that reduce emissions of diesel particulate matter (PM), oxides of nitrogen (NO<INF>X</INF>), and other pollutants from in-use, heavy-duty diesel-fueled trucks and buses, and drayage trucks. EPA is approving this SIP revision because the Agency has determined that the regulations are consistent with the relevant Clean Air Act requirements, policies and guidance. Final approval of the two regulations and incorporation of them into the California SIP makes them federally enforceable.