TRUST
A practical sourcing framework for California automotive reporting and evergreen guides.
Start with statutes, regulations, California agency pages, public records, official program documents, automaker or business first-party material, and original datasets. Add reputable secondary reporting when it provides context or independent verification.
Common source families include the California DMV, California Air Resources Board, California Energy Commission, Bureau of Automotive Repair, California Department of Tax and Fee Administration, Caltrans, courts, and the California Legislature.
Use official business pages for names and addresses when available. Directory details should be rechecked before publication because businesses can move, rename, or close.
Record the publication date, reporting period, methodology, and geographic scope of every statistic. Avoid combining registration, sales, licensing, or survey measures as if they describe the same population.