The board of directors of an air ambulance service district is hereby authorized and empowered to accept grants, loans, gifts, bequests or funding from any source, public or private, that the granting agency has authority to provide, but in no circumstances shall the acceptance of any such funding obligate any district to repay a sum in excess of the avails of the tax levies set forth in Section 41-55-47.
Miss. Code § 41-55-51