Is Pepper Spray Legal in Minnesota? Rules, Penalties, and Limits

Yes, pepper spray is legal in Minnesota for personal protection, and no permit or license is required to buy or carry it. The rules live in Minnesota Statute 624.731, which treats pepper spray as an “authorized tear gas compound” and sets conditions on who can carry it, what the canister must look like, and when using it counts as lawful self-defense rather than a crime.¹ Break those conditions and the penalties range from a misdemeanor to a felony.

Minnesota does not cap the OC concentration or the canister size. Any commercially sold spray containing oleoresin capsicum (the active ingredient from hot peppers) and labeled correctly qualifies as an authorized compound. A product outside the authorized chemical list is a different animal entirely, and possessing it is a felony.¹

Who Can Carry Pepper Spray

Most adults in Minnesota can carry pepper spray without paperwork of any kind. The main age rule is 16. Anyone under 16 needs written permission from a parent or guardian to possess or use an authorized tear gas compound.¹ A 14- or 15-year-old carrying a canister without that written note is technically breaking the law.

The statute also lists categories of people who are prohibited from possessing tear gas compounds at all. For certain prohibited individuals, possession is a felony; for others, including a minor without parental consent, it is a misdemeanor.²

What the Canister Itself Has to Look Like

Minnesota regulates the container, not just the chemistry. To be lawful, the spray must be:

Propelled from an aerosol container. Gels and foams qualify if they use an aerosol delivery mechanism; non-aerosol dispensers do not.
Labeled with clear written instructions for use and warnings about the product’s dangers.
Marked with an anticipated useful life (an expiration or “use by” date).

A canister missing any of these makes your possession a misdemeanor, even if the chemical inside is perfectly legal.¹ Products from established manufacturers already meet these requirements. An unbranded canister ordered from an obscure website that shows up with no labeling or date is a problem you have created without ever using the spray.

When You Can Legally Spray Someone

Section 624.731 allows pepper spray in “the exercise of reasonable force” to defend yourself or your property, tying into Minnesota’s general self-defense statute at section 609.06.¹ Under section 609.06, reasonable force is authorized when you are resisting or helping someone else resist an offense against a person, or when you are resisting a trespass or other unlawful interference with property you lawfully possess.³

The word doing all the work is “reasonable.” Spraying a stranger who grabs your bag on the street is clearly within it. Spraying a neighbor because they parked in front of your house is not. Using an authorized tear gas compound for any purpose outside reasonable self-defense is a misdemeanor under the statute.²

Penalties for Getting It Wrong

Section 624.731 sets three tiers of penalties, and this is where people are often surprised.

Misdemeanors

Punishable by up to 90 days in jail and a fine of up to $1,000. Misdemeanor conduct includes:

Carrying a canister that fails the aerosol, labeling, or dating requirements.
A minor under 16 carrying pepper spray without written parental permission.
Using an authorized tear gas compound for anything other than reasonable defense of person or property.
Selling pepper spray on premises where intoxicating liquor is sold, or where 3.2 percent malt beverages are sold on-sale.
Selling in violation of any local seller licensing requirement.

Gross Misdemeanors

Certain prohibited uses of tear gas are gross misdemeanors, carrying up to 364 days in jail and a fine of up to $3,000.⁴

Felonies

The most serious offenses under 624.731 include possessing or using an unauthorized tear gas compound, possession by certain prohibited persons, and knowingly selling or furnishing tear gas to someone barred from having it.²

Assault Charges on Top

Spraying someone without justification can also draw an assault charge under a separate statute. Fifth-degree assault covers intentionally inflicting or attempting to inflict bodily harm, and acts intended to cause fear of immediate harm. A first offense is a misdemeanor. If the target is the same person from a prior domestic violence-related conviction, it becomes a gross misdemeanor, and a pattern of such convictions can push it to a felony with up to five years in prison and a $10,000 fine.⁵ In a domestic setting, charges stack fast.

Where You Still Cannot Bring It

State law lets you carry pepper spray in most public places, but federal law creates hard no-go zones. Under 18 U.S.C. § 930, possessing a dangerous weapon in a federal facility is a crime punishable by up to a year in prison, and pepper spray qualifies.⁶ A federal facility is any building or part of a building the federal government owns or leases where federal employees regularly work: post offices, Social Security offices, federal courthouses, even federal offices tucked inside commercial buildings.⁷ State and local government buildings, courthouses, and schools may prohibit pepper spray under their own policies, so check signage before you walk in.

Airports are their own category. You cannot carry pepper spray through a TSA checkpoint or into an airplane cabin. One container can go in checked baggage if it holds no more than 4 fluid ounces (118 ml), has a safety mechanism to prevent accidental discharge, and contains no more than 2 percent CS or CN tear gas by mass.⁸ Most OC sprays clear that bar because they use oleoresin capsicum rather than CS or CN. Some airlines ban defensive sprays in checked bags regardless of TSA rules, so confirm with the carrier.

Expiration and Practical Storage

The dating requirement in section 624.731 is not just paperwork. Aerosol canisters lose internal pressure over time even if never used, and most commercial pepper sprays have a shelf life of about four years from manufacture. After that, the spray may not fire with enough force or range to work when you need it. Replacing an expired canister is inexpensive.

Minnesota law does not impose specific storage rules for home or vehicle carry. Practically, keep the canister out of extreme heat (which raises internal pressure and degrades the formula), out of reach of children, and secured in a car so it will not roll into something that compresses the trigger.

Buying and Shipping

Retailers can sell pepper spray in Minnesota without a statewide license, but counties and municipalities may impose their own seller licensing. The statute forbids selling authorized tear gas compounds on premises where intoxicating liquor is sold (on-sale or off-sale) or where 3.2 percent malt beverages are sold on-sale.¹ Mailing pepper spray through USPS is allowed but regulated as a Class 9 hazardous material (UN3334), with different labeling requirements for air versus ground shipment.⁹ Private carriers set their own rules.

1
Minnesota Office of the Revisor of Statutes. Minnesota Code 624.731 – Tear Gas and Tear Gas Compounds; Electronic Incapacitation Devices
2
Minnesota Office of the Revisor of Statutes. Minnesota Statutes Section 624.731
3
Minnesota Office of the Revisor of Statutes. Minnesota Statutes Section 609.06 – Authorized Use of Force
4
Minnesota Office of the Revisor of Statutes. Minnesota Statutes Section 609.0342
5
Minnesota Office of the Revisor of Statutes. Minnesota Statutes Section 609.224 – Assault in the Fifth Degree
6
GovInfo. 18 USC 930 – Possession of Firearms and Dangerous Weapons in Federal Facilities
7
Department of Homeland Security. FAQ for Prohibited Weapons at Federal Facilities
8
Transportation Security Administration. Pepper Spray
9
Postal Explorer. Hazardous, Restricted, and Perishable Mail (Publication 52)