Ala. Code § 45-45-201.08
On or after the first day of September each year, the director of the department, if he or she elects to do so, may mail an application in the form and containing the information hereinafter provided to all owners of motor vehicles listed as such in the motor vehicle license records, including transfers, in his or her office or, at his or her option, to such owners as request that such application be mailed to them. The application shall be on a form to be provided by the State Department of Revenue. The application form shall contain a space for the name and address of the owner of the motor vehicle and the make, model, year, and motor number of his or her motor vehicle and such other information with respect thereto as the State Department of Revenue may prescribe. The application form shall also contain a space for the correct amount of ad valorem taxes (state, county, school districts, and municipal) and the amount of the motor vehicle license tax due thereon and the issuance fee, including the mailing fee provided for herein. The application form shall also contain a space for the owner to fill in his or her present address, if different from that shown in the application form, and a space for his or her signature. The director of the department shall cause the application form to be filled in with the name and address of the owner; the description of the motor vehicle; the license tax and fees to become due on October 1st succeeding, as shown on the license registration and transfer records in his or her office; and the amount of ad valorem taxes on the motor vehicle for the preceding tax year as provided by Section 40-12-253. The director of the department shall thereupon cause the application, so filled in, to be mailed to the owner of the motor vehicle at his or her address shown thereon, at the address to which such owner requests that the application form be mailed. The owner of the motor vehicle, if he or she is still the owner of the motor vehicle and if he or she desires to pay his or her motor vehicle ad valorem taxes and license tax and secure his or her motor vehicle registration tag by mail, shall sign the application form, indicating thereon any change of address, and return the same by mail together with his or her remittance for ad valorem taxes, license taxes, and fees as shown thereon to the director of the department. Money orders and checks for the payment of such taxes and fees shall be made payable to the director of the motor vehicle license department. Upon receipt of the signed application form and the remittance for the amount properly due for ad valorem taxes, license tax, and fees, the director of the department shall thereupon mail a receipt for such taxes and fees and the license tag for his or her motor vehicle to the owner thereof. When an application is returned to the director of the department, unsigned, or when less than the correct amount of the taxes and fees due therefor has been paid, due to a change of address or other causes, the application shall be returned to the owner for correction or for signature. A return of the application or remittance shall not, however, extend the time within which taxes may be paid or a tag secured. If more than the correct amount of taxes and fees is received, the director of the department shall retain the correct amount of taxes and fees and return the excess together with the tag for the motor vehicle.
Ala. Code § 45-45-201.08 (1975)