How to monitor emissions from low risk medium combustion plants (MCPs) and specified generators (SGs). This document was previously known as TGN M5. This guidance provides a standardised approach to monitoring stack gas emissions from low risk plants regulated under the: • Medium Combustion Plant Directive(MCPD) 2015/2193/EU Directive on the limitation of certain pollutants into the air from medium combustion plant • Specified Generator Regulations (SGRs) EPR 2018 Schedule 25B 2 (1) – Specified Generators This guidance is for operators of: • low risk MCPs and SGs with standard rules permits • MCPs and SGs that are not low risk but have a condition in their permit that says they must use this guidance when monitoring compliance with emissions limits