Title 42 — The Public Health and WelfareRelease 119-73
§7507 New motor vehicle emission standards in nonattainment areas
Title 42 › Chapter CHAPTER 85— - AIR POLLUTION PREVENTION AND CONTROL › Subchapter SUBCHAPTER I— - PROGRAMS AND ACTIVITIES › Part Part D— - Plan Requirements for Nonattainment Areas › Subpart subpart 1— - nonattainment areas in general › § 7507
Summary
A State with an approved plan may adopt and enforce California's new-vehicle emission standards for a model year if they match California's waiver-approved standards and both states adopt them at least two years before that model year under EPA rules.
Full Legal Text
Title 42, §7507
The Public Health and Welfare — Source: USLM XML via OLRC
Notwithstanding section 7543(a) of this title, any State which has plan provisions approved under this part may adopt and enforce for any model year standards relating to control of emissions from new motor vehicles or new motor vehicle engines and take such other actions as are referred to in section 7543(a) of this title respecting such vehicles if—
(1)such standards are identical to the California standards for which a waiver has been granted for such model year, and
(2)California and such State adopt such standards at least two years before commencement of such model year (as determined by regulations of the Administrator).
Legislative History
Notes & Related Subsidiaries
Editorial Notes
Amendments
1990—Pub. L. 101–549 added sentence at end prohibiting States from limiting or prohibiting sale or manufacture of new vehicles or engines certified in California as having met California standards and from taking any actions where effect of those actions would be to create a “third vehicle”.
Reference
Citations & Metadata
Citation
42 U.S.C. § 7507
Title 42 — The Public Health and Welfare
Last Updated
Apr 6, 2026
Release point: 119-73