40 CFR Part 98, Table W-3
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Industry segment | Source type/component | Emission factor(scf total hydrocarbon/hour/component)
Population Emission Factors—Storage Wellheads, Gas Service
| Underground natural gas storage | Connector | 0.01 |
|---|---|---|
| Valve | 0.1 | |
| Pressure Relief Valve | 0.17 | |
| Open-Ended Line | 0.03 |
[89 FR 42325, May 14, 2024]