"Phase 1 GHG Emission Standards"

2 Documents in Project


SCH Number
Lead Agency
Air Resources Board
Document Title
"Phase 1 GHG Emission Standards"
Document Type
NOD - Notice of Determination

Document Description
The new "Phase 1 GHG Emissions Standards" regulation is one of five separate but related regulatory actions that will reduce GHG and NOx air emissions from medium- and heavy-duty vehicles and engines; harmonize State requirements with Federal requirements; establish new, optional provisions; and enhance enforcement and implementation of existing regulation. The five regulatory actions include: (1) Phase 1 GHG Regulations for Medium- and Heavy-Duty Engines and Vehicles; (2) Optional Reduced Emission Standards for Heavy-Duty Engines; (3) Amendments to the Tractor-Trailer GHG Regulation; (4) Diesel-Fueled Commercial Motor Vehicle Idling Rule; and (5) Amendments to the Heavy-Duty Hybrid-Electric Vehicle Certification Procedures. Specifically, this new regulation would align California's GHG emission standards and test procedures with those of the U.S. Phase 1 GHG regulation, provide nationwide consistency for engine and vehicle manufacturers, and allow ARB to both certify new motor vehicles and new motor vehicle engines to GHG standards and to enforce those requirements in California.

Contact Information
Cathi Slaminski
Air Resources Board
1001 I Street
Sacramento, CA 95814

Phone : (916) 323-1513



Notice of Determination

Approving Agency
California Air Resources Board
Approving Agency Role
Lead Agency
Approved On
Final Environmental Document Available at
http://www.arb.ca.gov/regact/2013/hdghg2013/hdghg2013.htm California Air Resources Board Board Administration and Regulatory Coordination Unit 1001 I Street Sacramento, CA 95814


(1) The project will have a significant impact on the environment
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
(2b) A Negative Declaration was prepared for this project pursuant to the provisions of CEQA
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
(3) Mitigated measures were made a condition of the approval of the project
(4) A mitigation reporting or monitoring plan was adopted for this project
(5) A Statement of Overriding Considerations was adopted for this project
(6) Findings were made pursuant to the provisions of CEQA
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