Texas Occupations Code - OCC § 1302.251. License Required

(a) A person may not engage in air conditioning and refrigeration contracting unless the person holds an air conditioning and refrigeration contractor license under this subchapter or Subchapter G.

(b) An air conditioning and refrigeration contractor license issued under this subchapter is valid throughout the state. A person who holds a license issued under this subchapter is not required to hold a municipal license under Subchapter G to engage in air conditioning and refrigeration contracting in any municipality in this state.

(c) A person holding an air conditioning and refrigeration contractor license may assign that license to only one permanent office of one air conditioning and refrigeration contracting company.