Tex. Ins. Code § 2006.051
In this subchapter:
(2) "Insurer" means an insurer authorized to write residential property insurance, including:
(3) "Residential property insurance" means property or property and casualty insurance covering a dwelling, including:
Added by Acts 2005, 79th Leg., Ch. 727 (H.B. 2017), Sec. 2, eff. April 1, 2007.