Government Code §418.014

(a) The governor by executive order or proclamation may declare a state of disaster if the governor finds a disaster has occurred or that the occurrence or threat of disaster is imminent. (b) Except as provided by Subsection (c), the state of disaster continues until the governor: (1) finds that: (A) the threat or danger has passed; or (B) the disaster has been dealt with to the extent that emergency conditions no longer exist; and (2) terminates the state of disaster by executive order. (c) A state of disaster may not continue for more than 30 days unless renewed by the governor. The legislature by law may terminate a state of disaster at any time. On termination by the legislature, the governor shall issue an executive order ending the state of disaster. (d) An executive order or proclamation issued under this section must include: (1) a description of the nature of the disaster; (2) a designation of the area threatened; and (3) a description of the conditions that have brought the state of disaster about or made possible the termination of the state of disaster. (e) An executive order or proclamation shall be disseminated promptly by means intended to bring its contents to the attention of the general public. An order or proclamation shall be filed promptly with the division, the secretary of state, and the county clerk or city secretary in each area to which it applies unless the circumstances attendant on the disaster prevent or impede the filing.