Section 250-RICR-150-10-2.7 - National Pretreatment Standards: Prohibited DischargesA. Industrial Users shall not discharge any substances that are not consistent with the National Pretreatment Standards, as set forth in 40 C.F.R. § 403.5 (2018), incorporated above at § 2.3 of this Part. In addition, the following specific prohibition shall also apply:B. Legend Drugs (Non-Controlled Prescription Drugs) shall not be discharged to the sewer, unless specifically required by Department of Health "Rules and Regulations Governing the Disposal of Legend Drugs" or FDA guidance.250 R.I. Code R. 250-RICR-150-10-2.7