Ala. Code § 11-97-20
Any corporation and all contracts made by it shall be exempt from the laws of the state requiring competitive bids for any contract to be entered into by counties, municipalities, public corporations, or other instrumentalities authorized by them, including, but without limitation to, the provisions of Article 3 of Chapter 16 of Title 41. Further, all contracts, whether or not involving any corporation as a party thereto, which relate to the design, construction, acquisition, financing, or operation of any facilities that are financed, in whole or in part, by any corporation pursuant to the provisions of this chapter (including, without limitation, utility services agreements and contracts for the design, construction, and equipment of such facilities) shall be exempt from (1) such laws requiring competitive bids for any contract to be entered into by counties, municipalities, public corporations, or other instrumentalities authorized by them, including, but without limitation to, the provisions of Article 3 of Chapter 16 of Title 41, and (2) the laws of the state limiting the duration of any contracts for the purchase of personal property or contractual services by counties, municipalities, public corporations, or other instrumentalities authorized by them, including, without limitation to, the provisions of Article 3 of Chapter 16 of Title 41.
Ala. Code § 11-97-20 (1975)