CFR > Title 40 > Chapter I > Subchapter C > Part 98 > Subpart GG CFR > Title 40 > Chapter I > Subchapter C > Part 98 > Subpart GG – Zinc Production Current as of: 2024 | Check for updates | Other versions § 98.330 Definition of the source category § 98.331 Reporting threshold § 98.332 GHGs to report § 98.333 Calculating GHG emissions § 98.334 Monitoring and QA/QC requirements § 98.335 Procedures for estimating missing data § 98.336 Data reporting requirements § 98.337 Records that must be retained § 98.338 Definitions