US lawWashingtonRegulationsTitle 173 — ECOLOGY, DEPARTMENT OFChapter 173-410 — SULFITE PULPING MILLS173-410-087WAC 173-410-087WAC 173-410-087. Prevention of significant deterioration (PSD)Last amended: 2019Year: 2026Length: 23 wordsOfficial source The provisions of WAC 173-400-700 through 173-400-750 shall apply to all new major sources and major modifications to which this chapter is applicable.PreviousWAC 173-410-086NextWAC 173-410-100