US lawWashingtonRegulationsTitle 284 — INSURANCE COMMISSIONER, OFFICE OF THEChapter 284-20A — RULES THAT APPLY TO INSURERS THAT UNDERWRITE MEDICAL MALPRACTICE INSURANCE284-20A-010WAC 284-20A-010WAC 284-20A-010. PurposeLast amended: 2006Year: 2026Length: 20 wordsOfficial source This chapter describes the underwriting restrictions that apply to medical malpractice insurers under RCW 48.18.290 , 48.18.2901 and 48.18.547 .NextWAC 284-20A-020