Okla. Stat. tit. 19, § 19-371: Authorization to contract for ambulance service -

Liability insurance - Immunity - Pension benefits.

(a) The board of county commissioners of any county may

contract for ambulance service with any city, town, county, person,

firm or corporation or combination of them under such terms and

conditions as may be agreed upon between the parties. Such

contracts shall provide for the carrying of liability insurance in

such amount as may be fixed and may provide for minimum standards of

service and equipment.

(b) Cities, towns and counties engaged in ambulance or

emergency service shall be agents of the State of Oklahoma, acting

solely and alone in a governmental capacity, and shall not be liable

for any act of commission, omission or negligence while so engaged.

(c) Any employee of any city, town or county engaging in

ambulance or emergency service at any time or place shall be

considered to be serving in regular line of duty and shall be

entitled to all the benefits of any pension fund to which he might

otherwise be entitled.