Diesel and Renewable Diesel Importer Reporting Categorías Topics Fuels Programs Diesel Fuel Tipo Form For each batch of diesel fuel imported into California, importers must report the import facility location, compliance option, and fuel volume to CARB’s Fuel Enforcement Section.Contact Amanda Ciccarelli, (916) 229-0523. Related Resources Renewable Diesel Agriculture Engine Emissions Testing California Reformulated Gasoline Regulatory Advisory (September 2023) Mobile Source Strategy