"Phase 1 GHG Emission Standards"

2 Documents in Project


SCH Number
Lead Agency
California Air Resources Board (ARB)
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
Agency Name
Air Resources Board
Contact Types
Lead/Public Agency



Notice of Determination

Approving Agency
California Air Resources Board
Approving Agency Role
Lead Agency
Approved On


(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 Mitigated or 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

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.

Download CSV New Search Print