Pretreatment standards for new sources (PSNS)

Pretreatment standards for new sources (PSNS). Pretreatment standards for new sources (PSNS). Except as provided in 40 CFR 403.7 , any new source subject to this subcategory that introduces process wastewater pollutants into a publicly owned treatment works shall comply with 40 CFR Part 403 , and achieve the pretreatment standards contained in s. NR 252.55 .