Tex. Gov't Code 418.171
License Reciprocity During Disaster
When an emergency declaration is in effect, an individual who holds a license, certification, or permit to practice a professional, mechanical, or other skill in any state can provide aid relevant to that skill.
Qualifications for Rendering Aid
A person who holds a license, certificate, or other permit issued by a state or political subdivision of any state evidencing the meeting of qualifications for professional, mechanical, or other skills may render aid involving the skill in this state to meet an emergency or disaster. This state shall give due consideration to the license, certificate, or other permit.