AED Laws & Requirements in Missouri
Reviewed against Missouri law on
Missouri AED requirements at a glance
| AED checks and maintenance |
Required Test every two years and after each use; inspect every 90 days (RSMo 190.092). |
|---|---|
| CPR and AED training |
Not required Not required since 2020; CPR courses must include AED instruction. |
| Medical direction (physician oversight) |
Not required Physician review removed in 2020. |
| EMS registration of the AED |
Not required No general notice requirement. School AEDs register with the Missouri 911 Service Board. |
| School cardiac emergency response plan |
Required Public and charter schools need a cardiac emergency response plan from 2026-2027 (SB 68, 2025). |
Official sources:www.senate.mo.gov, spectrumlocalnews.com
Missouri simplified its AED rules for owners in 2020, dropping physician review and the training mandate in favor of a clear maintenance schedule. In 2025 it added AED and cardiac emergency response plan requirements for every public and charter school.
Medical Oversight:
Missouri no longer requires a physician to review or approve an AED program (RSMo 190.092, as updated in 2020).
Training:
Training is not required to use an AED. Any CPR course taught in Missouri must include AED instruction that follows AHA, Red Cross, or equivalent standards. See our CPR and AED certification classes.
Maintenance and Inspection:
Owners must follow the manufacturer's maintenance and testing guidelines, test each AED at least every two years and after every use, and inspect every AED on the premises at least every 90 days for a blinking warning light, obvious defects, or tampering. Our pad and battery guide lists replacement intervals by model, and AED365 program management tracks the 90-day checks.
EMS Notification:
General owners are no longer required to notify dispatch. School AEDs must be registered with the Missouri 911 Service Board (below).
Good Samaritan Protection:
Anyone who gives emergency care with an AED in good faith and without pay is protected from civil damages and criminal penalties unless they act willfully, wantonly, or recklessly. Trainers, site owners, and device owners have similar protection.
Ambulances:
Basic life support ambulances and stretcher vans must carry an AED and at least one person trained to use it.
Schools (SB 68, 2025):
Signed July 9, 2025, this law requires every public and charter school to develop and carry out a cardiac emergency response plan starting with the 2026-2027 school year, with evidence-based core elements, a response team, and coordination with local EMS. Schools must place AEDs throughout their campuses and register each one with the Missouri 911 Service Board. Athletic staff, school nurses, and other staff named in the plan must hold first aid, CPR, and AED certification. Browse AEDs for schools.
Where does your Missouri AED program stand?
Run the free readiness review. A specialist will walk you through what Missouri asks of your organization.
AED.US does not provide legal advice. AED laws change and vary by facility type. Confirm your requirements with your counsel or the appropriate Missouri agency.