Ala. Code § 45-31-110.04

The county governing body shall determine the number of voting machines deemed necessary to serve adequately the voters at an election, taking into consideration the nature or character of the election; provided, however, that at each election there shall be maintained at each voting center at least one voting machine for each 600 voting electors, or fraction thereof, residing in the territory served by the voting center designated for the territory. At least 20 days prior to the time when the election officers for an election are required to be appointed, the county governing body shall in writing inform the officers whose duty it is to appoint the election officers of the number of voting machines which shall be maintained at the respective voting centers during the forthcoming election; and the officers whose duty it is to appoint election officers shall appoint the number of election officers for the respective voting centers required hereby to conduct elections in which the number of voting machines, shown in the statement of the county governing body, shall be maintained.