(a) Except as provided by Subsection (b), this chapter applies to any insurer that uses a document described by Section 1701.002 in this state, including:
(1) a life, accident, health, or casualty insurance company;
(2) a mutual life insurance company;
(3) a mutual insurance company other than a mutual life insurance company;
(4) a mutual or natural premium life insurance company;
(5) a general casualty company;
(6) a Lloyd's plan;
(7) a reciprocal or interinsurance exchange;
(8) a fraternal benefit society; and
(9) a group hospital service corporation.
(b) This chapter does not apply to a society, company, or other insurer whose activities are by statute exempt from department control and that is entitled by statute to a certificate from the department showing that exempt status.