California: Speed and Penalties

Speed limits and enforcement.

Destination context: Freeway culture dominates; lane splitting by motorcycles is legal. Municipal parking rules vary sharply between SF, LA, and San Diego.

How to read this guide: Stress freeway merge etiquette, FasTrak for rental vehicles, and municipal tow-away zone awareness in SF/LA.

Last reviewed: 2026-05-29 · Author: DrivingRules.World Editorial Team · Reviewed by: DrivingRules.World Fact-Check Team

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Limits and fines

Overview

Basic speed law: never unsafe for conditions. DUI ≥0.08% BAC: licence suspension, fines USD 390–1,000+, possible jail. School zones: 25 mph when children present or signed.

Official sources and references

Frequently asked questions

Are cameras used?

Yes, automated enforcement is common.