This paper is a description of a method called Process Optimization Review (PRO-OP). PRO-OP is a systematic approach used in production operations to identify opportunities to increase profitability while reducing green house gases (GHGs) such as methane. PRO-OP is a systematic approach to assess processes at new and existing facilities with an emphasis on energy efficiency, natural resource conservation and waste minimization. The PRO-OP process uses proven methane reduction methods in the USEPA's Gas STAR Best Management Practices (BMP) to optimize the facility. This methodology can be used in conjunction with a Process Hazards Analysis (PHA) for new facilities and prior to modification of an existing facility.

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