U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 40Chapter IPart 98Subpart W - Subpart W—Petroleum and Natural Gas Systems
§ 98.230 - Definition of the source category.
§ 98.231 - Reporting threshold.
§ 98.232 - GHGs to report.
§ 98.233 - Calculating GHG emissions.
§ 98.234 - Monitoring and QA/QC requirements.
§ 98.235 - Procedures for estimating missing data.
§ 98.236 - Data reporting requirements.
§ 98.237 - Records that must be retained.
§ 98.238 - Definitions.
Appendix - Table W-1 to Subpart W of Part 98—Default Whole Gas Population Emission Factors
Appendix - Table W-2 to Subpart W of Part 98—Default Whole Gas Leaker Emission Factors
Appendix - Table W-3 to Subpart W of Part 98—Default Total Hydrocarbon Population Emission Factors
Appendix - Table W-4 to Subpart W of Part 98—Default Total Hydrocarbon Leaker Emission Factors
Appendix - Table W-5 to Subpart W of Part 98—Default Methane Population Emission Factors
Appendix - Table W-6 to Subpart W of Part 98—Default Methane Leaker Emission Factors
Appendix - Table W-7 to Subpart W of Part 98—Default Methane Emission Factors for Internal Combustion Equipment
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