Cal. Code Regs. tit. 17, § 95660
Unless and until a court of competent jurisdiction issues a final ruling that H.J. Res. 88 (119th Congress) and H.J. Res. 89 (119th Congress) are invalid or that the waivers U.S. EPA granted California on January 6, 2025, 90 Federal Register 642 and 90 Federal Register 643, are in effect, regulated parties may choose to follow either this section 95660 or section 95660.0.1.
However, if a court of competent jurisdiction issues a final ruling that H.J. Res. 88 (119th Congress) and H.J. Res. 89 (119th Congress) are invalid or that the waivers U.S. EPA granted California on January 6, 2025, 90 Federal Register 642 and 90 Federal Register 643, are in effect, the regulated parties are subject to the requirements of this section 95660 to the extent consistent with the court's final ruling. Notice of the court's ruling will be posted on CARB's website, https://arb.ca.gov.
The purpose of this subarticle is to reduce greenhouse gas (GHG) emissions from new medium- and heavy-duty vehicles by establishing emission standards and other requirements applicable to such vehicles. These greenhouse gas emissions include: carbon dioxide (CO2), nitrous oxide (N2O), methane (CH4), and hydrofluorocarbons (HFCs).
Note: Authority cited: Sections 38501, 38505, 38510, 38560, 39010, 39600, 39601, 43013, 43018, 43101, 43104, and 43105, Health and Safety Code. Reference: Sections 38501, 38505, 38510, 38560, 38580, 39002, 39003, 39600, 39601, 43000, 43009.5, 43013, 43018, 43100, 43101, 43101.5, 43102, 43104, 43105, 43106, 43205, 43205.5 and 43211, Health and Safety Code.
1. New subarticle 12 (sections 95660-95664) and section filed 12-5-2014; operative 12-5-2014 pursuant to Government Code section 11343.4(b)(3) (Register 2014, No. 49).
2. Editorial correction of History 1 (Register 2014, No. 50).
3. New first and second paragraphs filed 10-2-2025 as an emergency; operative 10-2-2025 (Register 2025, No. 40). A Certificate of Compliance must be transmitted to OAL by 4-1-2026 or emergency language will be repealed by operation of law on the following day.
4. New first and second paragraphs refiled 3-26-2026 as an emergency; operative 4-1-2026 (Register 2026, No. 13). A Certificate of Compliance must be transmitted to OAL by 6-30-2026 or emergency language will be repealed by operation of law on the following day.