Public Access Defibrillation

Cardiovascular disease is the biggest killer of adults in Montana.  Eleven percent of White residents and 14% of American Indian residents reported a diagnosis of coronary artery disease. Cardiovascular disease mortality rates have declined for both the US and Montana over the past two decades and Montana continues to implement strategies to educate and prepare the public, emergency responders and dispatchers about cardiac event response.

A key strategy of Montana’s plan is the development of Public AccessAED programs.  Based upon American Heart Association guidelines for Public AccessAED, Montana requires entities to register their programs and to meet important guidelines related to education and training, medical oversight, AED maintenance and record keeping.

The New MT AED website is

Public Access Defibrillation Program Registration

Thank you for your interest in the Public Access Defibrillation Program. Complying with the Montana statutes and administrative rules is a simple online process and we are always available to assist you with the registration process. Tracking PAD programs and AED utilization helps DPHHS improve the program and the health and safety of Montanans.

For returning users, your username has not changed. You will need a password reset the first time you log in. For assistance logging into your account (reset password, get username) please email Janet Trethewey or call her at 444-0442.  Main Office number is 406-444-3895.


For assistance registering a NEW AED, please email Janet Trethewey and  provide the following information:

  • Information about your organization:
    • Name
    • Address
    • Phone Number
  • Program Manager, (person overseeing AED)
    • Name
    • Email
    • Phone Number
  • Your AED(s) – make, model, serial number and date of purchase
  • Your medical supervisor - This person is a Montana licensed physician, physician assistant, nurse practitioner or registered nurse that provides medical advice to your program.  This provider is your medical supervisor for questions you may have about training, integration with 9-1-1 dispatch and EMS services, and for review of any instances in which the AED is used.  If you have questions or need assistance with a medical supervisor, contact Janet Trethewey.
  • Names of personnel in your organization trained in CPR and AED (While we recognize that most entities make AEDs publicly available, there should be at least a core of personnel in your organization trained in CPR and AED.)
  • Acknowledgement that the local ambulance service and the local dispatch center have been contacted about your program.  Download Form Here

Remember: Registration under OPHI-AED meets the requirement for a ‘written plan’ as required under 37.104.604 ARM. No other ‘written’ plan is required. This will be clarified in a future rule revision.

Regular maintenance is required as batteries and AED pads expire and AED units do not always stay charged. AED checks (generally no less than monthly) are an important element of your operations.  Keep records of all maintenance performed.

Lastly, an electronic incident report is required each time an AED is attached to a patient. Reports are filed on the MT AED Site.

For any questions or assistance on registering, please feel free to contact:
Janet Trethewey at or call 406-444-0442.  Our main office phone number is (406) 444-3895

Benefits of Registration

Registration helps entities be successful by assuring the entity is integrated with dispatch and EMS response, people are trained to use the AED, the AEDs are maintained and in working order, and that medical oversight is in place to assure patients receive the best care possible.

An important benefit for registered entities is that Montana law provides liability protections and immunity from civil liability to:

  • An individual who provides emergency care or treatment by using an AED
  • An individual providing cardiopulmonary resuscitation to an individual upon whom an AED is or may be used
  • A person providing medical oversight of the AED program
  • The entity responsible for the AED program
  • An individual providing training to others on the use of an AED

AED program contact info for questions and assistance:

Janet Trethewey
(406) 444-0442