---
kind: "unit"
title: "40"
title_heading: "Protection of Environment"
key: "chI/subchC/part98"
level: "part"
label: "Part 98"
heading: "Mandatory Greenhouse Gas Reporting"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/40/chI-subchC-part98"
sections_count: 434
---

# Part 98 — Mandatory Greenhouse Gas Reporting

Title 40 C.F.R. — Protection of Environment › Chapter I — Environmental Protection Agency › Subchapter C — Air Programs

## Contents

- [Subpart A — General Provision](/cfr/40/chI-subchC-part98-subpartA.md)
- [Subpart B — Subpart B [Reserved]](/cfr/40/chI-subchC-part98-subpartB.md)
- [Subpart C — General Stationary Fuel Combustion Sources](/cfr/40/chI-subchC-part98-subpartC.md)
- [Subpart D — Electricity Generation](/cfr/40/chI-subchC-part98-subpartD.md)
- [Subpart E — Adipic Acid Production](/cfr/40/chI-subchC-part98-subpartE.md)
- [Subpart F — Aluminum Production](/cfr/40/chI-subchC-part98-subpartF.md)
- [Subpart G — Ammonia Manufacturing](/cfr/40/chI-subchC-part98-subpartG.md)
- [Subpart H — Cement Production](/cfr/40/chI-subchC-part98-subpartH.md)
- [Subpart I — Electronics Manufacturing](/cfr/40/chI-subchC-part98-subpartI.md)
- [Subpart J — Subpart J [Reserved]](/cfr/40/chI-subchC-part98-subpartJ.md)
- [Subpart K — Ferroalloy Production](/cfr/40/chI-subchC-part98-subpartK.md)
- [Subpart L — Fluorinated Gas Production](/cfr/40/chI-subchC-part98-subpartL.md)
- [Subpart M — Subpart M [Reserved]](/cfr/40/chI-subchC-part98-subpartM.md)
- [Subpart N — Glass Production](/cfr/40/chI-subchC-part98-subpartN.md)
- [Subpart O — HCFC-22 Production and HFC-23 Destruction](/cfr/40/chI-subchC-part98-subpartO.md)
- [Subpart P — Hydrogen Production](/cfr/40/chI-subchC-part98-subpartP.md)
- [Subpart Q — Iron and Steel Production](/cfr/40/chI-subchC-part98-subpartQ.md)
- [Subpart R — Lead Production](/cfr/40/chI-subchC-part98-subpartR.md)
- [Subpart S — Lime Manufacturing](/cfr/40/chI-subchC-part98-subpartS.md)
- [Subpart T — Magnesium Production](/cfr/40/chI-subchC-part98-subpartT.md)
- [Subpart U — Miscellaneous Uses of Carbonate](/cfr/40/chI-subchC-part98-subpartU.md)
- [Subpart V — Nitric Acid Production](/cfr/40/chI-subchC-part98-subpartV.md)
- [Subpart W — Petroleum and Natural Gas Systems](/cfr/40/chI-subchC-part98-subpartW.md)
- [Subpart X — Petrochemical Production](/cfr/40/chI-subchC-part98-subpartX.md)
- [Subpart Y — Petroleum Refineries](/cfr/40/chI-subchC-part98-subpartY.md)
- [Subpart Z — Phosphoric Acid Production](/cfr/40/chI-subchC-part98-subpartZ.md)
- [Subpart AA — Pulp and Paper Manufacturing](/cfr/40/chI-subchC-part98-subpartAA.md)
- [Subpart BB — Silicon Carbide Production](/cfr/40/chI-subchC-part98-subpartBB.md)
- [Subpart CC — Soda Ash Manufacturing](/cfr/40/chI-subchC-part98-subpartCC.md)
- [Subpart DD — Electrical Transmission and Distribution Equipment Use](/cfr/40/chI-subchC-part98-subpartDD.md)
- [Subpart EE — Titanium Dioxide Production](/cfr/40/chI-subchC-part98-subpartEE.md)
- [Subpart FF — Underground Coal Mines](/cfr/40/chI-subchC-part98-subpartFF.md)
- [Subpart GG — Zinc Production](/cfr/40/chI-subchC-part98-subpartGG.md)
- [Subpart HH — Municipal Solid Waste Landfills](/cfr/40/chI-subchC-part98-subpartHH.md)
- [Subpart II — Industrial Wastewater Treatment](/cfr/40/chI-subchC-part98-subpartII.md)
- [Subpart JJ — Manure Management](/cfr/40/chI-subchC-part98-subpartJJ.md)
- [Subpart KK — Subpart KK [Reserved]](/cfr/40/chI-subchC-part98-subpartKK.md)
- [Subpart LL — Suppliers of Coal-based Liquid Fuels](/cfr/40/chI-subchC-part98-subpartLL.md)
- [Subpart MM — Suppliers of Petroleum Products](/cfr/40/chI-subchC-part98-subpartMM.md)
- [Subpart NN — Suppliers of Natural Gas and Natural Gas Liquids](/cfr/40/chI-subchC-part98-subpartNN.md)
- [Subpart OO — Suppliers of Industrial Greenhouse Gases](/cfr/40/chI-subchC-part98-subpartOO.md)
- [Subpart PP — Suppliers of Carbon Dioxide](/cfr/40/chI-subchC-part98-subpartPP.md)
- [Subpart QQ — Importers and Exporters of Fluorinated Greenhouse Gases Contained in Pre-Charged Equipment or Closed-Cell Foams](/cfr/40/chI-subchC-part98-subpartQQ.md)
- [Subpart RR — Geologic Sequestration of Carbon Dioxide](/cfr/40/chI-subchC-part98-subpartRR.md)
- [Subpart SS — Electrical Equipment Manufacture or Refurbishment](/cfr/40/chI-subchC-part98-subpartSS.md)
- [Subpart TT — Industrial Waste Landfills](/cfr/40/chI-subchC-part98-subpartTT.md)
- [Subpart UU — Injection of Carbon Dioxide](/cfr/40/chI-subchC-part98-subpartUU.md)
- [Subpart VV — Geologic Sequestration of Carbon Dioxide With Enhanced Oil Recovery Using ISO 27916](/cfr/40/chI-subchC-part98-subpartVV.md)
- [Subpart WW — Coke Calciners](/cfr/40/chI-subchC-part98-subpartWW.md)
- [Subpart XX — Calcium Carbide Production](/cfr/40/chI-subchC-part98-subpartXX.md)
- [Subpart YY — Caprolactam, Glyoxal, and Glyoxylic Acid Production](/cfr/40/chI-subchC-part98-subpartYY.md)
- [Subpart ZZ — Ceramics Manufacturing](/cfr/40/chI-subchC-part98-subpartZZ.md)