US lawWashingtonRegulationsTitle 468 — TRANSPORTATION, DEPARTMENT OFChapter 468-12 — TRANSPORTATION COMMISSION AND TRANSPORTATION DEPARTMENT STATE ENVIRONMENTAL POLICY ACT RULES468-12-010WAC 468-12-010WAC 468-12-010. AuthorityLast amended: 1984Year: 2026Length: 16 wordsOfficial source This chapter is promulgated pursuant to the authority granted in RCW 43.21C.120 and chapter 197-11 WAC.NextWAC 468-12-020