Tex. Ins. Code § 544.352
In this subchapter:
(2) "Insurer" means an insurance company, reciprocal or interinsurance exchange, mutual insurance company, capital stock company, county mutual insurance company, farm mutual insurance company, association, Lloyd's plan, or other entity writing residential property insurance in this state. The term includes an affiliate, as described by Section 823.003(a), if that affiliate is authorized to write and is writing residential property insurance in this state. The term does not include:
(4) "Underwriting guideline" means a rule, standard, guideline, or practice, whether written, oral, or electronic, that is used by an insurer or an agent of an insurer to:
Added by Acts 2005, 79th Leg., Ch. 728 (H.B. 2018), Sec. 11.015(a), eff. September 1, 2005.
Acts 2007, 80th Leg., R.S., Ch. 730 (H.B. 2636), Sec. 3B.022(a), eff. September 1, 2007.
Acts 2007, 80th Leg., R.S., Ch. 921 (H.B. 3167), Sec. 9.022(a), eff. September 1, 2007.