Every California smog check term and question, plainly defined

I just moved to California — do I need a smog check?

Yes — within 20 days of residency.

Per California DMV registration rules.

This entry also has a full Q&A treatment: smoganswers.com/q/i-just-moved-to-california-do-i-need-a-smog-check/

View in the A–Z glossary →

Last reviewed 2026-05-25 · Cal Smog Network canonical answer library