STAR smog check
What does STAR smog check mean?
STAR is BAR's higher-standard certification.
- Stations meet stricter equipment requirements
- Directed vehicles must use STAR
- Look for the STAR seal at the station
Per BAR (bar.ca.gov/smog-check).
View in the A–Z glossary →
Last reviewed 2026-05-25 · Cal Smog Network canonical answer library