Code of Alabama
Chapter 31 - Heating, Air Conditioning, and Refrigeration Contractors.
Section 34-31-27 - Citizenship; Application Forms.

All applicants for examinations and certificates and all applicants for renewal certificates shall be citizens of the United States or, if not a citizen of the United States, a person who is legally present in the United States with appropriate documentation from the federal government, and shall be required to fill out a form which shall be provided by the board.