(a) Every ambulance service, whether privately operated or operated by any political subdivision of the state or any municipality, as a condition of maintaining a valid license shall pay an annual license fee to the license officer in an amount to be determined by the Board of Human Resources. The amount of said license fee may be periodically revised by said board. Said license fee shall become due and payable upon the initial issuance of the license and each year thereafter on the anniversary date of the initial license issuance.

(b) All revenues collected from this annual fee shall be dedicated and deposited into the Indigent Care Trust Fund by the licensing officer.