40 CFR Table 3
Requirements for Validating Continuous Emission Monitoring Systems (CEMS)
June 9, 2020
Open Table
For the following continuous emission monitoring systems | Use the following methods in appendix A of this part to validate pollutant concentration 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. |
aClass 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 more than 250 tons per day of municipal solid waste. See §60.1465 for definitions.