This document establishes requirements for FOG (fats, oils, and greases) disposal systems. FOG disposal systems shall be designed to (a) remove FOG from effluent (b) retain separated FOG (c) internally dispose retained FOG by means and methods of mass and volume reduction as required by para. 4.3.2 The use of alternate materials or methods are permitted, provided the proposed material and method complies with the performance requirements and intent of this Standard.