Texas Natural Resources Code - NAT RES § 113.401. Notice Required

(a) A person holding a license to install or repair an LPG system who sells, installs, or repairs an LPG system, piping or other equipment that is part of a system, or an appliance that is connected or attached to a system shall provide the following notice to the purchaser or owner of the system, piping or other equipment, or appliance:

WARNING: Flammable Gas. The installation, modification, or repair of an LPG system by a person who is not licensed or registered to install, modify, or repair an LPG system may cause injury, harm, or loss. Contact a person licensed or registered to install, modify, or repair an LPG system. A person licensed to install or repair an LPG system may not be liable for damages caused by the modification of an LPG system by an unlicensed person except as otherwise provided by applicable law.

(b) The commission shall adopt rules relating to the notice required by Subsection (a).