Utah does not classify every knife as a dangerous weapon and does not impose one statewide blade-length limit on ordinary knives. Under the current code, a non-firearm object becomes a “dangerous weapon” based on how it is used or intended to be used, its purpose, the circumstances, the threat presented, and its lawful uses. [1]
For most adults, ordinary lawful knife ownership and carry are not restricted by a universal length or automatic-knife ban. The important limits concern criminal intent, threatening conduct, minors, intoxication, schools, daycare, higher education, secure airport areas, and property rules.
Which knives can adults own?
The cited Utah weapons chapter does not categorically ban an adult from owning a manual folder, fixed blade, automatic knife, OTF knife, or balisong merely because of its opening mechanism or blade length. Whether a particular knife is treated as a dangerous weapon depends on the statutory definition and facts. [1]
What are the general carry rules?
Utah’s current general concealed-carry sections 76-11-202 through 76-11-204 concern firearms, not a general knife-length rule. For knives and other dangerous weapons, § 76-11-207 prohibits unlawfully drawing or exhibiting one in an angry and threatening manner or unlawfully using one in a fight or quarrel. The same section says possession alone—visible or concealed—without additional threatening behavior does not constitute that offense. [2]
Section 76-11-208 separately prohibits possessing a dangerous weapon with intent to use it to commit a criminal offense. [2]
What rules apply to minors?
Section 76-11-211 generally prohibits a minor from possessing a dangerous weapon, but it provides important permission and supervision exceptions. A child under 14 must have parental permission and be accompanied by a parent, guardian, or responsible adult; a minor age 14–17 may qualify with parental permission, provided the weapon is not used in a crime. Other activity-specific exceptions are listed. [3]
Because the statute applies to “dangerous weapons,” it should not be rewritten as a blanket ban on every ordinary tool in every circumstance.
What locations require special attention?
Section 76-11-205 restricts carrying a dangerous weapon in public or private elementary and secondary school buildings and on private school grounds, subject to detailed exceptions. For a non-firearm dangerous weapon, a violation is a Class B misdemeanor. [4]
Effective May 6, 2026, § 76-11-205.5 separately prohibits intentionally carrying a dangerous weapon openly at an institution of higher education, with listed exceptions including accidental exposure, approved activities, and certain vehicle circumstances. [5]
Section 76-11-206 addresses dangerous weapons at daycare facilities. Section 76-11-218 addresses airport secure areas. Each contains definitions and exceptions that should be checked before carrying. [2]
Can an intoxicated person carry a dangerous weapon?
Section 76-11-217 prohibits carrying a dangerous weapon that is readily accessible for immediate use while under the influence of alcohol or a controlled substance, subject to enumerated exceptions. A hunting license or concealed-firearm permit is not a defense. [6]
Do local rules apply?
Utah declares Title 76, Chapter 11 uniformly applicable throughout the state and its political subdivisions. [7] That does not eliminate private-property policies, federal rules, school administration approvals, or the specific facility restrictions written into Chapter 11.
Practical takeaway
Utah has no general statewide knife-length limit and no automatic-knife ownership ban in the cited chapter. Focus on whether the knife is a “dangerous weapon” in context, avoid threatening conduct or criminal intent, and verify rules for minors, intoxication, schools, daycare, higher education, airports, and private property.
Last reviewed: August 24, 2026.
This article provides general information, not legal advice. Utah knife law can depend on the object’s design, lawful purpose, manner of use, intent, age, intoxication, location, permits, property rules, and court interpretation. Verify current official sources or consult a qualified Utah attorney about a specific situation.
Sources & References
- [1] Utah Code § 76-11-101. Dangerous-weapon definition and factors for non-firearm objects.
- [2] Utah Code, Title 76, Chapter 11. Current weapons chapter, including §§ 205–208 and 218.
- [3] Utah Code § 76-11-211. Possession of a dangerous weapon by a minor and exceptions.
- [4] Utah Code § 76-11-205. Dangerous weapons at elementary and secondary schools.
- [5] Utah Code § 76-11-205.5. Openly carrying a dangerous weapon at an institution of higher education.
- [6] Utah Code § 76-11-217. Carrying a dangerous weapon while under the influence.
- [7] Utah Code § 53-5a-102. Uniform statewide application of Title 76, Chapter 11.
