| (a) This subchapter does not apply to an off-premise portable sign in an unincorporated area of a county with a population of 3.3 million or more, according to the most recent federal census, if the county either prohibits or regulates the location, height, size, anchoring, or use of such a portable sign. (b) This subchapter does not apply to an on-premise sign in an unincorporated area of a county with a population of 3.3 million or more or a county that borders such a county if: (1) the county has adopted an ordinance to regulate on-premise signs; or (2) the commissioner's court of the county, by order, has authorized the commission to regulate on-premise signs in the unincorporated area of the county in accordance with a municipal or county regulation. |
