Section 433.003 - Duration of State of Emergency(a) Except as provided by Subsection (b), a directive expires 72 hours after the time of proclamation of the state of emergency for which it was issued.(b) The governor by proclamation may terminate or set a shorter period for a directive. The governor may proclaim successive states of emergency, each not exceeding 72 hours, as necessary to protect health, life, and property in the affected area, and may extend a directive from one state of emergency to the next.Tex. Gov't. Code § 433.003
Acts 1987, 70th Leg., ch. 147, Sec. 1, eff. 9/1/1987.