US lawMontanaRegulationsTitle 17 — ENVIRONMENTAL QUALITYChapter 17.30 — WATER QUALITYSubchapter 17.30.14 — Pretreatment17.30.1407ARM 17.30.1407ARM 17.30.1407. NATIONAL PRETREATMENT STANDARDS: CATEGORICAL STANDARDSRepealedLast amended: 2016Length: 1 wordsOfficial source Cite as Mont. Admin. R. 17.30.1407(REPEALED)PreviousARM 17.30.1406NextARM 17.30.1407