Who runs this site
This knowledge hub is owned and operated by Super Station Concord, a California-licensed STAR-certified SMOG test-and-repair station at 1650 Monument Boulevard, Concord, CA 94520. The educational guides on this site are paid for and produced by Super Station Concord as a service to California drivers.
Because Super Station Concord operates the site, we want you to know that up front. The coupon callouts you see throughout the site lead to Super Station's $49.75 SMOG offer, and the main booking link goes to the parent business at superstationconcord.com. If you choose to use a different SMOG station, that is fine — BAR maintains an official station locator at bar.ca.gov so you can verify any shop's license and find alternatives.
What this site covers
The guides on this site focus on statewide California SMOG rules and education: who needs inspections, exemptions, STAR station requirements, what happens when a vehicle fails, the Consumer Assistance Program, and how to prepare your vehicle. We deliberately do not run a separate local Concord service-listing page — when you are ready to book, you go to the main Super Station Concord website.
How content is sourced
All factual claims are sourced from public information published by the California Bureau of Automotive Repair (BAR), the California DMV, and related state agencies. We review content periodically and update it when rules change. The full list of source documents is on the official sources page.
When a topic requires specialized technical context — like how a specific emissions component works or why certain vehicles fail SMOG tests — we cross-reference guidance from BAR's technician training materials, the federal EPA, and recognized automotive service standards.
What we do not do
- We do not replace official government guidance. Our content is educational.
- We do not provide legal, financial, or professional mechanical advice tailored to your specific vehicle.
- We do not collect personal information from readers. No email signup, no third-party tracking beyond basic analytics.
- We do not sell your data and we do not run third-party ads.
- We do not accept payment for coverage of any other shop, vehicle brand, or product.
How to contact us or report an error
If you notice an error, an outdated rule, or a piece of information that needs clarification, please report it so we can fix it. Accuracy matters more than anything else on this site.
You can reach the team behind the site through Super Station Concord at 925-685-0101 or via the contact details listed on the Super Station website.
Content license
Articles on this site are free to read and share with attribution. You may link to any page. Reproducing full articles requires permission — please reach out first.