(a) Except as provided by Section 942.152 and Subsection (b), if a certificate of authority is issued as provided by Subchapter C, the power of attorney or other authorization executed by the subscribers must provide that, in addition to the premium or premium deposit specified in the reciprocal or interinsurance contract, the subscribers are liable for a contingent premium equal to one additional annual premium or premium deposit.
(b) If the subscribers and their attorney in fact are authorized to issue reciprocal or interinsurance contracts for cash premiums only, the power of attorney or other authorization may waive all contingent premiums.