Section 163-3-8 - Availability for Emergency Response1. Any ground ambulance service offering response to emergency medical calls in the service's 9-1-1 Primary Response Area must be available twenty-four hours a day, every day, with full-time dispatch capability, and written mutual aid arrangements as necessary, and must also provide a detailed plan to its primary dispatch agency indicating its mutual aid agencies and the order of contact of those mutual aid agencies.A. Failure of a ground ambulance service to comply with these emergency response requirements will be reviewed by Maine EMS to determine if corrective action is required. Maine EMS shall notify the service of any required corrective action and shall set a reasonable amount of time for the service to carry out this action.2. A non-transporting service providing response to emergency medical calls must submit with its initial license application a letter of understanding if the service's hours of availability will be other than twenty-four hours a day, every day. This letter of understanding must be approved by Maine EMS and signed by an authorized representative of the non-transporting service, and an authorized representative of the transporting service. Changes to the letter of understanding may be accomplished by written agreement of the aforementioned parties.3. Non-transporting services must have a full-time dispatch capability, written mutual aid arrangements as necessary and assure an annual average response time during their hours of availability of twenty minutes or less from the "call for emergency medical assistance" to "arrival at scene" and shall not deny treatment resulting from an emergency medical call if treatment is indicated.