Part 441 - DENTAL OFFICE POINT SOURCE CATEGORYBrowse as ListSearch WithinSection 441.10 - ApplicabilitySection 441.20 - General definitionsSection 441.30 - Pretreatment standards for existing sources (PSES)Section 441.40 - Pretreatment standards for new sources (PSNS)Section 441.50 - Reporting and recordkeeping requirements