This measure would cancel an Environmental Protection Agency (EPA) decision that let California use its “Advanced Clean Cars II” rules for vehicle pollution. The EPA’s notice, published January 6, 2025, granted California a waiver from federal limits so it could set its own stricter standards. This resolution would nullify that EPA notice, meaning California could not enforce those particular rules under federal law if the measure becomes law .

In plain terms, it’s about whether California can keep tougher car and engine pollution standards than the federal government. If the resolution passes, the EPA’s approval is undone, and those California rules would no longer have effect under that waiver .

• Key points:
  • Who is affected: California regulators, the EPA, car and engine makers, and California drivers .
  • What changes: The EPA’s approval of California’s Advanced Clean Cars II waiver would be canceled, stopping those specific state rules from taking effect under that waiver .
  • When: The EPA notice was published January 6, 2025; the resolution would nullify that notice if enacted .