40 CFR Part 63, Table 3
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
| For * * * | You must use * * * |
|---|---|
| 1. Selecting the sampling locations a and the number of traverse points | EPA test method 1 or 1A in appendix A to part 60. |
| 2. Determining the velocity and volumetric flow rate | EPA test method 2, 2A, 2C, 2D, 2F, or 2G, as appropriate, in appendix A to part 60. |
| 3. Determining the gas molecular weight used for flow rate determination | EPA test method 3, 3A, 3B, as appropriate, in appendix A to part 60. |
| 4. Measuring the moisture content of the stack gas | EPA test method 4 in appendix A to part 60. |
| 5. Measuring the PM emissions | EPA test method 5 in appendix A to part 60. |
a The sampling locations must be located at the outlet of the process equipment (or control device, if applicable), prior to any releases to the atmosphere.