For purposes of this subchapter and for purposes of regulation by TDI:(1) PEO as large employer. An approved PEO is a large employer as defined in Insurance Code Chapter 1501, concerning the Health Insurance Portability and Availability Act, unless a provision in this subchapter clearly indicates otherwise.(2) PEO plan as large employer health benefit plan. An approved PEO's plan is a large employer health benefit plan as defined in Insurance Code Chapter 1501 unless a provision in this subchapter clearly indicates otherwise.(3) Provisions applicable to both small and large employer plans. An Insurance Code or Administrative Code provision that refers to both small and large employer health benefit plans or their issuers applies to an approved PEO as a large employer health benefit plan issuer and to its plan as a large employer health benefit plan unless a provision in this subchapter clearly indicates otherwise.(4) Plan document is group policy. An approved PEO's plan document is a group policy unless a provision in this subchapter clearly indicates otherwise.(5) Certificate of coverage is certificate of insurance. An approved PEO's certificate of coverage is a certificate of insurance. An approved PEO's certificate of coverage must comply with ERISA, 29 U.S.C. §1022 (Summary plan description).