(1) Requirement to meet California vehicle emission standards - Passenger cars, light-duty trucks, and medium-duty vehicles.

(a) Applicability. Starting with model year 2025, a manufacturer's sales fleet of passenger cars, light-duty trucks, and medium-duty vehicles delivered for sale or lease in Washington must comply with California Code of Regulations, Title 13, sections 1962.2 and 1962.3, adopted by reference in WAC 173-423-030.

(b) Reporting requirements. Beginning with model year 2025, a manufacturer must submit a report to ecology for each on-road vehicle produced and delivered for sale in Washington for each model year as required by California Code of Regulations, Title 13, section 1962.3.

(c) ZEV credits. ZEV credits may only be earned by model year 2025 and subsequent vehicles.

(2) Requirement to meet California vehicle emission standards - On-road vehicles over 8,500 GVWR. (California advanced clean trucks regulation)

(a) Applicability. Starting with model year 2025, any manufacturer that certifies on-road vehicles over 8,500 pounds GVWR for sale or lease in Washington must comply with California Code of Regulations, Title 13, sections 1963 through 1963.5, adopted by reference in WAC 173-423-030.

(b) Reporting requirements. Beginning with model year 2025, a manufacturer must submit a report to ecology for each on-road vehicle produced and delivered for sale in Washington for each model year as required by California Code of Regulations, Title 13, section 1963.4.