CA AB1964

Extends authorization for specified low-emission and alternative fuel vehicles to use HOV lanes until federal authorization expires or Secretary of State receives notice of expiration, whichever occurs first

Requires income restrictions starting January 1, 2019, limiting HOV lane identifier eligibility to applicants earning below $125,000 (single), $170,000 (head of household), or $250,000 (joint filers) who received Clean Vehicle Rebate Project rebates

Changes validity periods for identifiers issued to partial or transitional zero-emission vehicles: valid until January 1, 2021 if issued between January 1, 2018 and January 1, 2019; valid until January 1 of the fourth year after issuance if issued on or after January 1, 2019

Removes the 85,000 identifier cap for partial or transitional zero-emission vehicles and instead prohibits new identifier issuance once sales reach 9.2% of total new car market share for two consecutive years, upon notification by State Air Resources Board

Requires Department of Transportation to remove HOV lane access for identified vehicles upon request and concurrence of regional transportation planning agencies if specified congestion findings are met