Wash. Rev. Code § 48.22.060
Every insurer that writes collision and comprehensive coverage for loss or damage to "private passenger automobiles" or "motor homes," as those terms are defined in RCW 48.18.297 and 46.04.305, respectively, shall provide, upon the insured's request, coverage that will pay, in the event of total loss, an amount, in excess of the actual cash value of the vehicle, sufficient to satisfy any outstanding indebtedness secured by and incurred in conjunction with the financing of the purchase of a new private passenger automobile or motor home.
Nothing in this section prohibits an insurer from denying or excluding such coverage where the insured or someone acting on the insured's behalf acts in a fraudulent manner to obtain or file a claim under such coverage.
RCW 48.22.060
Effective date-1987 c 240: "The effective date of this act is January 1, 1988." [ 1987 c 240 s 2.]