The commissioner is hereby authorized, and shall within a reasonable time following July 30, 1967, adopt standard forms for loss payable and mortgagee clauses for property and automobile physical damage insurances, pursuant to the procedures set forth in RCW 48.18.120
(1). Following the adoption of such forms, no insurer authorized to do business in the state shall use any form other than those so adopted.
[1967 ex.s. c 12 § 1.]