1. “Volunteer firefighter” means a person who is enrolled as a member of a fire department and who serves in such capacity without receiving a regular salary. A person who is a salaried public safety employee of a municipality shall not serve as a volunteer firefighter of a volunteer fire department unless the person is off duty and such service is not a condition of employment. A public safety employee is a person employed to serve as a salaried firefighter, police or other law enforcement officer or emergency medical technician;

2. “Volunteer fire department” means a fire department which has in its employ not more than two full-time salaried firefighters; and

3. “Municipality” means a municipality which has qualified to participate in the Oklahoma Firefighters Pension and Retirement System.