US lawSouth DakotaRegulationsTitle 74 — AGRICULTURE & NATURAL RESOURCESArticle 74:52 — SURFACE WATER DISCHARGE PERMITSChapter 74:52:11 — Pretreatment regulations74:52:11:07ARSD 74:52:11:07ARSD 74:52:11:07. PIU permit renewalsLast amended: 1993Year: 2026Length: 17 wordsOfficial source Cite as S.D. Admin. R. 74:52:11:07A PIU permittee must reapply for a permit at least 180 days before the existing permit expires.PreviousARSD 74:52:11:06NextARSD 74:52:11:08