Model Rule—Requirements for Validating Continuous Emission Monitoring Systems (CEMS)

For the following continuous emission monitoring systems Use the following methods in appendix A of this part to validate poollutant concentratin levels Use the following methods in appendix A of this part to measure oxygen (or carbon dioxide) 1. Nitrogen Oxides (Class I units only) a Method 7, 7A, 7B,7C, 7D, or 7E Method 3 or 3A. 2. Sulfur Dioxide Method 6 or 6C Method 3 or 3A. 3. Carbon Monoxide Method 10, 10A, or 10B Method 3 or 3A. a Class I units mean small municipal waste combustion units subject to this subpart that are located at municipal waste combustion plants with an aggregate plant combustion capacity greater than 250 tons per day of municipal solid waste. See § 60.1940 for definitions.