(a) In this subtitle the following words have the meanings indicated. (b) 'Construction license' means a license issued by the clerk to do construction business. (c) (1) 'Do construction business' means to agree to: (i) pave or curb a sidewalk, street, or other public or private property; (ii) excavate earth, rock, or other material for a foundation or other purpose; or (iii) do work on or in a building or other structure that requires the use of a building material, including: 1. paint; 2. stone; 3. brick; 4. mortar; 5. wood; 6. cement; 7. structural iron; 8. structural steel; 9. sheet iron; 10. galvanized iron; 11. metallic piping; 12. tin; 13. lead; 14. electric wiring; or 15. any other metal. (2) 'Do construction business' does not include home improvement as defined in § 8–101 of this article. (d) 'Nonresident construction license' means a construction license issued by the clerk to a person who is incorporated or has its principal office in another state.
Maryland Legal Code