Ala. Code § 36-1-11

All persons who are regularly employed by the state and whose pay is seventy-five thousand dollars ($75,000) or less exclusive of benefits shall be permitted to also engage in employment in the private sector if the employment is not specifically prohibited by statute, and if there is no conflict with the state job of the state employee. However, no employee shall engage in employment in the private sector during their scheduled working hours. The entity that employed the state employee shall not do business with or be employed by the department that employs the state employee.