US lawWashingtonRegulationsTitle 173 — ECOLOGY, DEPARTMENT OFChapter 173-183 — OIL SPILL NATURAL RESOURCE DAMAGE ASSESSMENT173-183-020WAC 173-183-020WAC 173-183-020. AuthorityLast amended: 1992Year: 2026Length: 23 wordsOfficial source This regulation implements RCW 90.48.366 , 90.48.367 , and 90.48.368 of the Water Pollution Control Act, as amended in 1987, 1989, and 1991.PreviousWAC 173-183-010NextWAC 173-183-030