(a) An insurer or an agent may not issue a certificate of insurance unless the form of the certificate:
(1) has been filed with and approved by the department under Section 1811.101; or
(2) is a standard form deemed approved by the department under Section 1811.103.
(b) A person may not execute, issue, or require the issuance of a certificate of insurance for risks located in this state, unless the certificate of insurance form has been filed with and approved by the department.