(a) The commission may establish a quarantine against all or the portion of a state, territory, or country in which a disease listed in rules adopted under § 161.041 exists.
(b) A quarantine established under Subsection (a) may extend to any affected area, including a county, district, pasture, lot, ranch, farm, field, range, thoroughfare, building, stable, or stockyard pen.

(c) The commission may establish a quarantine to prohibit or regulate the movement of:
(1) any article or animal that the commission designates to be a carrier of a disease listed in rules adopted under § 161.041 or a potential carrier of one of those diseases, if movement is not otherwise regulated or prohibited; and
(2) an animal into an affected area, including a county district, pasture, lot, ranch, farm, field, range, thoroughfare, building, stable, or stockyard pen.
(d) The commission by rule may delegate its authority to establish a quarantine under this section to the executive director, who shall promptly notify the members of the commission when a quarantine is established.