(a) To promote the general public welfare, the commissioners court of a county by order may:
(1) establish a planning commission under this section; and
(2) abolish a planning commission established under this section.
(b) The commissioners court may authorize the planning commission to act on behalf of the commissioners court in matters relating to:
(1) the duties and authority of the commissioners court under Subchapter A, B, or C; and
(2) land use, health and safety, planning and development, or other enforcement provisions specifically authorized by law.

(c) If the commissioners court establishes a planning commission, the commissioners court by order shall adopt reasonable rules and procedures necessary to administer this subchapter.
(d) This subchapter does not grant a commissioners court or a planning commission the power to regulate the use of property for which a permit has been issued to engage in a federally licensed activity.