Michigan Pepper Spray Laws 2026 | Campus & Student Guide

Campus Policies at Major Michigan Colleges

⚠️ Campus policies change annually. Always verify with your school's current student handbook or Dean of Students office before carrying.

College	City	Pepper Spray	Personal Alarm	Notes
University of Michigan	Ann Arbor	✅ Allowed	✅ Allowed	U of M follows Michigan state law. Pepper spray within the 35g state limit is permitted. Verify residential restrictions with U of M Housing.
Michigan State University	East Lansing	✅ Allowed	✅ Allowed	Michigan State follows Michigan law. MSU's large campus makes personal alarms especially practical. Verify current dorm policy with MSU Residential and Hospitality Services.
Wayne State University	Detroit	✅ Allowed	✅ Allowed	Wayne State is in Midtown Detroit. Follows Michigan state law. Urban environment — personal alarm plus pepper spray within the 35g limit is the recommended setup.
Western Michigan University	Kalamazoo	✅ Allowed	✅ Allowed	WMU follows Michigan law. Self-defense sprays within state limits are permitted. Verify dorm policy with WMU Housing.
Central Michigan University	Mount Pleasant	⚠️ Verify	✅ Allowed	CMU weapons policy prohibits dangerous weapons on campus. The 35g state limit applies to state law but CMU's specific campus policy on pepper spray is not clearly documented. Contact CMU Police (989-774-3081) to verify current policy before bringing pepper spray.
Oakland University	Rochester	⚠️ Verify	✅ Allowed	Oakland University weapons policy prohibits dangerous weapons. Specific pepper spray status under campus policy is not clearly documented. Contact OU Police (248-370-3331) to verify current campus policy before bringing pepper spray.
Grand Valley State University	Allendale	✅ Allowed	✅ Allowed	GVSU follows Michigan state law. Permitted within state limits. Confirm dorm policy with GVSU Housing.

Michigan allows pepper spray but with an important catch: the 35-gram (1.23 oz) size limit is stricter than most states and eliminates most full-size canisters. Parents buying pepper spray for Michigan-bound students need to check the product's net weight label before purchasing. Keychain-format sprays are the practical choice here.

What Michigan Law Actually Says

Michigan Compiled Laws Section 750.224d governs civilian carry of self-defense sprays:

Age: 18 or older
Size: Maximum 35 grams (approximately 1.23 oz) net weight
Concentration: No state restriction on OC percentage
Permit: None required
Where it is banned: Federal buildings, courthouses, correctional facilities

The 35-Gram Limit in Practice

35 grams is about the weight of a keychain spray. Here is how common products stack up:

Product	Net Weight	Legal in Michigan?
She's Birdie Personal Alarm	N/A — not spray	✅ Yes
SABRE Keychain Spray (0.54 oz)	~15g	✅ Yes
Mace Keychain (0.75 oz)	~21g	✅ Yes
SABRE 3-in-1 (1.8 oz)	~51g	❌ Over limit
SABRE Campus Safety (3 oz)	~85g	❌ Over limit

If you are buying online and the net weight is not listed, contact the manufacturer before purchasing for a Michigan student.

Wayne State: Urban Detroit

Wayne State's Midtown Detroit location means students frequently navigate the surrounding urban environment. The 35g legal limit still allows effective keychain sprays — and a personal alarm is highly effective in urban Detroit where pedestrian traffic is present around the Cass Corridor and New Center areas.

Buy the right size. Michigan's 35g limit is easy to miss. Check the product net weight before purchasing.

Ready to buy? See our best pepper spray for college students — reviewed and compared for campus use. If pepper spray is restricted at your student's campus, a personal alarm is legal everywhere with no restrictions.

Important: Campus policies change. Always verify current pepper spray rules directly with your student's campus police department or housing office before move-in day. State law sets the minimum — individual colleges can be more restrictive.

Frequently Asked Questions

Is pepper spray legal in Michigan?

Yes, with a size restriction. Michigan Compiled Laws Section 750.224d permits adults 18 and older to carry aerosol self-defense sprays not exceeding 35 grams (about 1.23 oz) net weight. Most keychain-size canisters are under this limit; larger belt-clip or purse canisters may exceed it.

What is the 35-gram rule for pepper spray in Michigan?

Michigan limits civilian pepper spray containers to a maximum of 35 grams net weight. This is roughly equivalent to 1.23 oz — smaller than a standard tube of lip balm. Keychain sprays (typically 0.5 oz or 15g) easily qualify. Standard 2 oz or 3 oz canisters do not.

What pepper spray products are legal in Michigan?

Any pepper spray canister weighing 35 grams (1.23 oz) or less at net weight is legal in Michigan. SABRE's keychain spray, She's Birdie, and similar keychain-format products are within this limit. Always check the product net weight before purchasing.

Can University of Michigan students carry pepper spray on campus?

Yes, within the 35g state limit. U of M follows Michigan law. Students should verify specific residential restrictions with their RA or U of M Housing, as individual dorms may have additional policies.