Indiana § 9-21-5-12 - Maximum speeds greater or less than what is reasonably safe; declaration of new limit; variable limits; violation
Full text of Indiana Indiana Code § 9-21-5-12 — Maximum speeds greater or less than what is reasonably safe; declaration of new limit; variable limits; violation, with citation guidance and answers to common questions.
§ 9-21-5-12. Maximum speeds greater or less than what is reasonably safe; declaration of new limit; variable limits; violation
Sec. 12. (a) Except as provided in subsections (d) and (e), whenever the Indiana department of transportation determines on the basis of an engineering and traffic investigation that a maximum speed set forth in this chapter is greater or less than is reasonable or safe under the conditions found to exist at an intersection or other place or on part of the state highway system, the Indiana department of transportation may determine and declare a reasonable and safe maximum limit at the intersection or on the part of the state highway system. The differing limit is effective when appropriate signs giving notice of the limit are erected.
(b) A maximum speed limit under this section may be declared to be effective at all times or at times indicated on the signs. Differing limits may be established for different times of day and different types of vehicles. The differing limits are effective when posted on appropriate fixed signs.
(c) A person who exceeds a speed limit established under this section commits a Class C infraction.
(d) The Indiana department of transportation may decrease the speed limit on a highway in its jurisdiction with a functional classification of minor collector or local road in an urban district to twenty (20) miles per hour without an engineering and traffic investigation.
(e) The Indiana department of transportation may not:
(1) implement variable speed limits; or
(2) use electronic variable speed limit signs.
[Pre-1991 Recodification Citation: 9-4-1-61.]
As added by P.L.2-1991, SEC.9. Amended by P.L.164-2018, SEC.14; P.L.49-2024, SEC.12; P.L.156-2026, SEC.10.
Source: official Indiana text · Last verified 2026-08-27
Frequently Asked Questions About Indiana § 9-21-5-12
What does Indiana Code § 9-21-5-12 cover?
Section 9-21-5-12 ("Maximum speeds greater or less than what is reasonably safe; declaration of new limit; variable limits; violation") is part of the Indiana Code, the codified statutory law of Indiana. 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 Indiana § 9-21-5-12?
A common citation format is "Indiana Code § 9-21-5-12" (Indiana). 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 Indiana law?
No. This page is for research and education and may not include the most recent amendments. For official current law, check the Indiana official source linked on this page or consult a licensed Indiana attorney.
How does Indiana § 9-21-5-12 apply to my situation?
Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in Indiana 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 Indiana.