(1) A nonprofit joint underwriting association for day care insurance is hereby established. Membership in the association shall be mandatory for all insurers that on or after July 1, 1986, possess a certificate of authority to write property and casualty insurance within this state on a direct basis. Every such insurer shall be and remain a member of the association and fulfill all its membership obligations as a condition of its authority to continue to transact property and casualty insurance business in this state.

(2) The association shall remain inactive, except for the actions of the board enumerated in WAC 284-78-050 through 284-78-080, until it is activated by the commissioner as provided in WAC 284-78-040.