Alabama constitution
Article V: executive department
Section 118

The governor, lieutenant governor, attorney-general state auditor, secretary of state, state treasurer, and commissioner of agriculture and industries, shall receive compensation to be fixed by law, which shall not be increased or diminished during the term for which they shall have been elected, and shall, except the lieutenant governor, reside at the state capital during the time they continue in office, except during epidemics. The compensation of the lieutenant governor shall be the same as that received by the speaker of the house, except while serving as governor, during which time his compensation shall be the same as that allowed the governor.