Ala. Code § 31-8-25

No person shall purchase or receive a transfer of any pension or warrant issued or to be issued under this chapter before the date provided for issuing warrants provided in this chapter, unless in writing transferred for face value or for supplies of merchandise, or unless discounted at nothing more than the legal rate of interest, which shall be stated in the instrument of transfer, and a copy of such transfer must be made and filed with the county department of human resources to be returned with a receipt to the State Department of Human Resources.