782 P.2d 1063 CERTIFICATION FROM THE UNITED STATES DISTRICT COURT FOR THE WESTERN DISTRICT OF WASHINGTON IN DENICE K. MacKENZIE, Individually and as Personal Representative, ET AL, Plaintiffs, v. EMPIRE INSURANCE COMPANIES, ET AL, Defendants. No. 55798-5.The Supreme Court of Washington. En Banc. December 7, 1989. [1] Insurance — Underinsured Motorist — Excess Coverage — […]