California § 21457 - Whenever an illuminated flashing red or yellow light is used in a traffic signal
Full text of California Public Contract Code - PCC § 21457 — Whenever an illuminated flashing red or yellow light is used in a traffic signal, with citation guidance and answers to common questions.
§ 21457. Whenever an illuminated flashing red or yellow light is used in a traffic signal
Whenever an illuminated flashing red or yellow light is used in a traffic signal or with a traffic sign, it shall require obedience by drivers as follows: (a) Flashing red (stop signal): When a red lens is illuminated with rapid intermittent flashes, a driver shall stop at a clearly marked limit line, but if none, before entering the crosswalk on the near side of the intersection, or if none, then at the point nearest the intersecting roadway where the driver has a view of approaching traffic on the intersecting roadway before entering it, and the driver may proceed subject to the rules applicable after making a stop at a stop sign. (b) Flashing yellow (caution signal): When a yellow lens is illuminated with rapid intermittent flashes, a driver may proceed through the intersection or past the signal only with caution.
Source: official California text · Last verified 2026-08-27
Frequently Asked Questions About California § 21457
What does Public Contract Code - PCC § 21457 cover?
Section 21457 ("Whenever an illuminated flashing red or yellow light is used in a traffic signal") is part of the Public Contract Code - PCC, the codified statutory law of California. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.
How do I cite California § 21457?
A common citation format is "Public Contract Code - PCC § 21457" (California). Legal writing may require the code abbreviation, section number, and year or edition. Match the style required by your court, professor, or publisher.
Is this the official text of California law?
No. This page is for research and education and may not include the most recent amendments. For official current law, check the California official source linked on this page or consult a licensed California attorney.
How does California § 21457 apply to my situation?
Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in California can advise on how this section applies to you. Contact your state or local bar association for a referral.
Sources & Verification
Not legal advice. Verify against the official source and consult a licensed attorney in California.