(a) Except as provided by this subchapter, a person may not obtain a permit for a commercial sign under this subchapter unless the person holds a currently valid license issued under §21.153 of this subchapter (relating to License Issuance) or under §21.450 of this chapter (relating to License Issuance) applicable to the county in which the sign is to be erected or maintained.
(b) A license is valid for one year from the date of issuance or most recent renewal.
(c) Each license holder shall notify the department not later than the 30th day after the date of a change in the mailing address, telephone number, or email address of the license holder.

Source Note: The provisions of this §21.144 adopted to be effective July 1, 2011, 36 TexReg 2418; amended to be effective April 19, 2012, 37 TexReg 2687; amended to be effective March 14, 2018, 43 TexReg 1446