Ala. Code § 22-35-7: Financial Responsibility Requirements for Taking Response Action.

(a) The financial responsibility requirements for taking response action by underground motor fuel storage tank owners or operators shall be set at five thousand dollars ($5,000) per occurrence, and for aboveground tank owners or operators the financial responsibility requirements shall be set at ten thousand dollars ($10,000) per occurrence. The financial responsibility for third-party claims is five thousand dollars ($5,000). The commission may increase the clean-up and third party damage liability per occurrence to owners or operators when recommended by the management board.

(b) Financial responsibility may be established by any one or combination of the following: Insurance, guarantee, surety bond, letter of credit, or qualification as a self-insurer. A person may qualify as a self-insurer by showing tangible net worth in the amount of twenty-five thousand dollars ($25,000).