§ 205-c. Payments pending controversies where volunteer firefighters are killed or injured. In order to provide for the prompt payment of benefits under sections two hundred five and two hundred nine-a of this article, and under the workers' compensation law, where such benefits are conceded to be due to any person because of the death of or injuries to a volunteer firefighter but controversy exists as to which city, village, town or fire district is liable for the payment thereof, the municipalities and districts involved in such controversy and their insurance carriers, if any, may agree that any one or more of such municipalities or districts or its insurance carrier shall pay the benefits to, or in relation to, the person conceded to be entitled to such benefits without waiting for a final determination of the controversy, and may carry out the provisions of such an agreement. Notwithstanding any such payment, any party to the agreement may seek a final determination of the controversy in the same manner as if such payment had not been made. After a final determination the parties to the agreement shall make any necessary and proper reimbursement to conform to the determination. The term "insurance carrier" as used herein shall mean an insurance company, or a county mutual self-insurance plan in accordance with subdivision three-a of section fifty of the workers' compensation law, or any plan which shall be provided for by law in amendment of or substitution for such a plan.