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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Oct 30, 2025
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Title 40
Chapter I
Part 98
Subpart NN - Subpart NN—Suppliers of Natural Gas and Natural Gas Liquids
§ 98.400 - Definition of the source category.
§ 98.401 - Reporting threshold.
§ 98.402 - GHGs to report.
§ 98.403 - Calculating GHG emissions.
§ 98.404 - Monitoring and QA/QC requirements.
§ 98.405 - Procedures for estimating missing data.
§ 98.406 - Data reporting requirements.
§ 98.407 - Records that must be retained.
§ 98.408 - Definitions.
Appendix - Table NN-1 to Subpart NN of Part 98—Default Factors for Calculation Methodology 1 of This Subpart
Appendix - Table NN-2 to Subpart NN of Part 98—Default Factors for Calculation Methodology 2 of This Subpart
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