HRSD's Best Management Practices (BMP) are a practice or combination of practices which are applicable to broad categories of industry, and are determined by HRSD to be an effective, practicable means of preventing or reducing the release of toxic and hazardous pollutants from spills, leaks, treatment and manufacturing processes; controlling fats, oils and grease (FOG); or otherwise controlling inputs to the POTW. BMPs may be used as a written control mechanism as determined by HRSD and shall be enforceable in accordance with the HRSD's Industrial Wastewater Discharge Regulations. The Pretreatment & Pollution Prevention (P3) Division manages three active BMP categories.