California § 21401 - Except as provided in Section 21374, only those official traffic control devices
Full text of California Public Contract Code - PCC § 21401 — Except as provided in Section 21374, only those official traffic control devices, with citation guidance and answers to common questions.
§ 21401. Except as provided in Section 21374, only those official traffic control devices
(a) Except as provided in Section 21374, only those official traffic control devices that conform to the uniform standards and specifications promulgated by the Department of Transportation shall be placed upon a street or highway. (b) Any traffic signal controller that is newly installed or upgraded by the Department of Transportation shall be of a standard traffic signal communication protocol capable of two-way communications. A local authority may follow this requirement. (c) In recognition of the state and local interests served by the action made optional for a local authority in subdivision (b), the Legislature encourages local agencies to continue taking the action formerly mandated by this section. However nothing in this subdivision may be construed to impose any liability on a local agency that does not continue to take the formerly mandated action.
Source: official California text · Last verified 2026-08-27
Frequently Asked Questions About California § 21401
What does Public Contract Code - PCC § 21401 cover?
Section 21401 ("Except as provided in Section 21374, only those official traffic control devices") 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 § 21401?
A common citation format is "Public Contract Code - PCC § 21401" (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 § 21401 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.