CFR > Title 40 > Chapter I > Subchapter C > Part 98 > Subpart Y CFR > Title 40 > Chapter I > Subchapter C > Part 98 > Subpart Y – Petroleum Refineries Current as of: 2024 | Check for updates | Other versions § 98.250 Definition of source category § 98.251 Reporting threshold § 98.252 GHGs to report § 98.253 Calculating GHG emissions § 98.254 Monitoring and QA/QC requirements § 98.255 Procedures for estimating missing data § 98.256 Data reporting requirements § 98.257 Records that must be retained § 98.258 Definitions