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Envirofacts Greenhouse Gas Reporting Subparts Data Tables and Visual Overview

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📘 Introduction

This page provides a streamlined overview of greenhouse gas (GHG) data reported to EPA under the Greenhouse Gas Reporting Program (GHGRP), organized alphabetically by subpart. Each section summarizes the reported data and its structure within Envirofacts tools and services.

For full regulatory context and technical reporting guidance, see the GHGRP web area.

🔍 How to Use This Page

Each subpart section provides: 

  • A short description of the source category. 
  • An interactive table diagram - click any box to explore the corresponding GHG reporting table. 
  • Links to Envirofacts metadata pages for more detail on each table. 

For programmatic access to the data, use the Envirofacts Data Service API. For visual filtering and downloading, try the GHG Query Builder.

📚 Subparts Covered

Jump directly to a subpart using the links below:

  • Subpart AA – Pulp and Paper Manufacturing. 
  • Subpart C - Stationary Fuel Combustion Sources
  • Subpart D - Electricity Generation. 
  • Subpart DD - Municipal Solid Waste 
  • Subpart EE - Metals Production. 
  • Subpart F – Aluminum Production.
  • Subpart FF – Underground Coal Mines.
  • Subpart G – Ammonia Manufacturing.
  • Subpart GG – Zinc Production.
  • Subpart H – Cement Production.
  • Subpart HH – Municipal Solid Waste Landfills.
  • Subpart I – Electronics Manufacturing.
  • Subpart II – Industrial Wastewater Treatment.
  • Subpart K – Ferroalloy Production.
  • Subpart L – Fluorinated Gas Production.
  • Subpart MM – Suppliers of Petroleum Products
  • Subpart N – Glass Production.
  • Subpart NN – Suppliers of Natural Gas and Natural Gas Liquids.
  • Subpart P – Hydrogen Production.
  • Subpart PP – Suppliers of Carbon Dioxide (CO₂).
  • Subpart Q – Iron and Steel Production.
  • Subpart R – Lead Production.
  • Subpart RR – Geologic Sequestration of Carbon Dioxide.
  • Subpart S – Lime Manufacturing.
  • Subpart SS – Electrical Equipment Use.
  • Subpart T – Magnesium Production. 
  • Subpart TT – Industrial Waste Landfills
  • Subpart U – GHG Emissions from Electric Arc Furnace Steelmaking.
  • Subpart UU – Injection of Carbon Dioxide.
  • Subpart V – Nitric Acid Production.
  • Subpart W – Petroleum and Natural Gas Systems.
  • Subpart X – Petrochemical Production.
  • Subpart Y – Petroleum Refineries.
  • Subpart Z – Phosphoric Acid Production. 

📄 Subpart AA – Pulp and Paper Manufacturing

GHG data reported by pulp and paper manufacturing facilities. 

GHG Subpart AA Table DiagramPUB_DIM_FACILITY AA_MAKEUP_CHEMICAL_INFO AA_SUBPART_LEVEL_INFORMATION AA_SPENT_LIQUOR_INFORMATION AA_FOSSIL_FUEL_INFORMATION AA_FOSSIL_FUEL_TIER_2_INFO AA_TIER1EQUATIONINPUT AA_CEMS_DETAILS AA_TIER_4_CEMS_QUARTERLY_CO2

Diagram: Click any box to view the corresponding GHG data table for Subpart AA.


📄 Subpart C - Stationary Fuel Combustion Sources

Covers GHG emissions from fuel combustion at facilities such as power plants, boilers, and industrial energy systems. 

Greenhouse Gas Subpart C ModelC_TIER1EQUATIONINPUT C_TIER2_MONTHLY_HHV C_BIOGENIC_CO2_DETAILS PUB_DIM_FACILITY C_SUBPART_LEVEL_INFORMATION C_CONFIGURATION_LEVEL_INFO C_FUEL_LEVEL_INFORMATION C_CEMS_QUARTERLY_CO2

Diagram: Click any box to explore the corresponding GHG reporting data table for Subpart C.


📄 Subpart D – Electricity Generation

Covers GHG emissions from fossil fuel combustion at facilities that generate electricity for distribution.

Greenhouse Gas Subpart D ModelPUB_DIM_FACILITY D_SUBPART_LEVEL_INFORMATION D_CONFIGURATION_LEVEL_INFO D_FUEL_LEVEL_INFORMATION

Diagram: Click any box to explore the corresponding GHG reporting data table for Subpart D.


📄 Subpart DD – Electrical Transmission and Distribution

Covers GHG emissions from equipment used in electrical transmission and distribution systems, including SF6 and PFCs.

Greenhouse Gas Subpart DD Model
Figure: Subpart DD table structure with clickable elements. 

📄Subpart EE – Electrical Equipment Manufacturing

Covers GHG emissions from manufacturing electrical equipment, including emissions calculated using CEMS and non-CEMS methods.

Greenhouse Gas Subpart EE Model

Subpart EE table structure with clickable elements.

EE_TIER4CEMS_QTRDTLS EE_SUBPART_LEVEL_INFORMATION EE_NOCEMSTIO2DETAILS EE_NOCEMS_MONTHLYDETAILS EE_FACILITY_INFO PUB_DIM_FACILITY EE_CEMS_DETAILS EE_CEMS_INFO

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📄Subpart F – Aluminum Production

Covers GHG emissions from primary aluminum production processes, including electrolytic reduction and ancillary operations.

Greenhouse Gas Subpart F ModelF_SUBPART_LEVEL_INFORMATION table PUB_DIM_FACILITY table F_METHOD_DETAILS table F_SMELTER_DETAILS table

Subpart F table structure with clickable elements.


📄Subpart FF – Underground Coal Mines

Covers GHG emissions from underground coal mining operations, including ventilation, degasification systems, and methane destruction or recovery activities.

Greenhouse Gas Subpart FF ModelFF_DESTROFFSITE_QTRLY table FF_DESTROFFSITE_BACKUP table FF_DEGAS_WEEKLY table FF_VENTILATION_QTRLY table FF_DEGAS_QTRLY table FF_WELL_AND_SHAFT table PUB_DIM_FACILITY table FF_SUBPART_LEVEL_INFORMATION table FF_DEGASIFICATION table FF_DESTROFFSITE_WEEKLY table

Subpart FF table structure with clickable elements.


📄Subpart G – Ammonia Manufacturing

Covers GHG emissions from the manufacture of ammonia, including emissions from both combustion and process units using CEMS and non-CEMS methodologies.

Greenhouse Gas Subpart G ModelG_CEMS_DETAILS table G_FEEDSTOCK_DETAILS table PUB_DIM_FACILITY table G_NON_CEMS_SOURCE_INFO table G_INFO table G_SUBPART_LEVEL_INFORMATION table
Subpart G table structure with clickable elements.

📄Subpart GG – Zinc Production

Covers GHG emissions from primary zinc production processes, including emissions from process units not monitored by CEMS.

Greenhouse Gas Subpart GG ModelGG_SUBPART_LEVEL_INFORMATION table GG_NOCEMS_ZINC_DETAILS table PUB_DIM_FACILITY table GG_FACILITY_INFO table
Subpart GG table structure with clickable elements.

📄Subpart H – Cement Production

Covers GHG emissions from cement manufacturing, including emissions from kilns and combustion sources, using both CEMS and non-CEMS methods.

Greenhouse Gas Subpart H ModelH_CEMS_DETAILS table H_NO_CEMS_MONTH_DETAILS table H_NO_CEMS_QRTR_DETAILS table PUB_DIM_FACILITY table H_SUBPART_LEVEL_INFORMATION table H_NO_CEMS_RAW_MATERIAL_DETAILS table H_CEMS_INFO table
Subpart H table structure with clickable elements.

📄Subpart HH – Municipal Solid Waste Landfills

Covers GHG emissions from municipal solid waste (MSW) landfills, including landfills with and without gas collection systems, and includes data on waste quantities, landfill characteristics, and methane recovery or destruction.

Greenhouse Gas Subpart HH ModelHH_GAS_COLLECTION_SYSTEM_DETLS table HH_ANN_WASTE_DISPOSAL_QTY table HH_HIST_YR_WASTE_QTY table HH_LNDFIL_WTH_GAS_CLCT_WST_DEP table HH_WASTE_QTY_DETAILS table HH_GAS_COLLECTION_SYSTEM_DETLS table HH_ANN_WASTE_DISPOSAL_QTY table HH_HIST_WASTE_QTY_METHOD table HH_COVER_TYPE_DETAILS table HH_SUBPART_LEVEL_INFORMATION table HH_ACTIVE_AERATION_SYS_DETLS table PUB_DIM_FACILITY table HH_LNDFIL_WTHOUT_GAS_CLCT_EMIS table HH_HIST_YR_WASTE_QTY_DETL table HH_LANDFILL_INFO table
Subpart HH table structure with clickable elements.

Subpart I – Electronics Manufacturing

Covers GHG emissions from electronics manufacturing, including semiconductor, photovoltaic, MEMS, and LCD production. Emissions are reported for various fluorinated GHGs and nitrous oxide, including abatement and facility-level data.

Greenhouse Gas Subpart I ModelI_N2O_INFO table I_SEMICONDUCTOR_INFO table I_PV_MEMS_LCD_INFO table PUB_DIM_FACILITY table I_FACILITY_DETAILS table I_ABATEMENT_INFO table I_FHTF_INFO table MV_EF_I_ANN_FGHG_SE_MICONDUCTOR table MV_EF_I_ANN_FGHG_PVMEMSLCD table MV_EF_I_DRE_CLAIMED_GAS_INFO table MV_EF_I_FAB_ABATEMENT_SYSTEM table MV_EF_I_FAB_DETAILS table MV_EF_I_FAB_FLU_HEAT_TRANFLUID table MV_EF_I_FAB_N2O_EMISSIONS table MV_EF_I_FAB_STACK_SYS_DETAILS table MV_EF_I_FAB_STACK_TEST_CERT table
Subpart I table structure with clickable elements.

Subpart II – Industrial Wastewater Treatment

Greenhouse Gas Subpart II ModelII_SUBPART_LEVEL_INFORMATION table II_SUBPART_LEVEL_INFORMATION table II_BIOGAS_REC_PROC table II_EQUATION_II6 table PUB_DIM_FACILITY table II_EQU_II4_INPUT table II_EQUATION_II3 table II_EQUATION_II7 table II_PROCESS_DETAILS table II_CH4_GEN_PROCESS table II_EQU_II1_OR_II2 table
Figure: Subpart II table structure with clickable elements.

Subpart K – Ferroalloy Production

Covers GHG emissions from suppliers of coal-based liquid fuels.

Greenhouse Gas Subpart K ModelK_CEMS_INFO table K_SUBPART_LEVEL_INFORMATION table K_CEMS_DETAILS table K_NON_CEMS_SOURCE_INFO table PUB_DIM_FACILITY table K_INFO table
Subpart K table structure with clickable elements.

Subpart L – Fluorinated Gas Production

Covers GHG emissions from fluorinated gas production processes.

Greenhouse Gas Subpart L ModelEF_L_DESTRUCTION_DEV_DETAILS table EF_L_VENTINGFGHG table EF_L_PROCESS_EF_ECF table PUB_DIM_FACILITY table EF_L_DESTRUCTIONFGHG table EF_L_FACILITYDETAILS table EF_L_GASINFO table EF_L_PROCESS_MASS_BALANCE table
Subpart L table structure with clickable elements.

Subpart MM – Suppliers of Petroleum Products

Covers GHG emissions from suppliers of petroleum products.

Greenhouse Gas Subpart MM ModelMM_SUBPART_LEVEL_INFORMATION table PUB_DIM_FACILITY table

Subpart MM table structure with clickable elements.


Subpart N – Glass Production

Covers GHG emissions from glass production facilities.

Greenhouse Gas Subpart N ModelN_CEMS_DETAILS table N_NON_CEMS_SOURCE_INFO table N_CEMS_INFO table N_SUBPART_LEVEL_INFORMATION table PUB_DIM_FACILITY table N_INFO table
Subpart N table structure with clickable elements.

Subpart NN – Suppliers of Natural Gas and Natural Gas Liquids

Covers GHG emissions from natural gas suppliers and fractionators.

Greenhouse Gas Subpart NN ModelNN_LDC_DETAILS table NN_LDC_NAT_GAS_DELIVERIES table NN_NGL_FRACTIONATOR_METHODS table NN_SUBPART_LEVEL_INFORMATION table PUB_DIM_FACILITY table
Subpart NN table structure with clickable elements.

Subpart P – Hydrogen Production

Covers GHG emissions from hydrogen production facilities.

Greenhouse Gas Subpart P ModelP_CEMS_DETAILS table P_UNIT_INFO table P_UNIT_INFO_CEMS table P_SUBPART_LEVEL_INFO table PUB_DIM_FACILITY table

Subpart P table structure with clickable elements.


Subpart PP – Suppliers of Carbon Dioxide (CO₂)

Covers GHG emissions from CO₂ suppliers including extraction and distribution.

Greenhouse Gas Subpart PP ModelPP_VOLUME_FLOW_MEASURE_DETAILS table PP_MASS_FLOW_MEASURE_DETAILS table PP_CALC_METHOD_DATA_QUALITY table PP_CO2_FLOW_MEASURE_EQUIPMENT table PP_CO2_END_USE_DETAILS table PP_METER_AND_EQUIPMENT_DETAILS table PP_SUBPART_LEVEL_INFORMATION table PUB_DIM_FACILITY table

Subpart PP table structure with clickable elements.


Subpart Q – Iron and Steel Production

Covers GHG emissions from industrial wastewater treatment operations.

Greenhouse Gas Subpart Q ModelQ_FLARE_INFORMATION table Q_CEMS_INFO table Q_CEMS_DETAILS table Q_UNIT_DETAILS table Q_SUBPART_LEVEL_INFORMATION table PUB_DIM_FACILITY table
Subpart Q table structure with clickable elements.

Subpart R – Lead Production

Covers GHG emissions from primary aluminum production facilities.

Greenhouse Gas Subpart R ModelR_FEEDSTOCK_INFO table R_SMELTING_FURNACE_INFO table R_FACILITY_INFO table R_SUBPART_LEVEL_INFORMATION table PUB_DIM_FACILITY table

Subpart R table structure with clickable elements.


Subpart RR – Geologic Sequestration of Carbon Dioxide

Greenhouse Gas Subpart RR ModelRR_SEQUESTOFCO2FAC table RR_SEQCO2SEPARATOFLM table RR_SEQCO2INJFLMASSVOL table PUB_DIM_FACILITY table

Subpart RR table structure with clickable elements.


Subpart S – Lime Manufacturing

Covers GHG emissions from lime manufacturing facilities.

Greenhouse Gas Subpart S ModelS_NO_CEMS_ANNUAL_AVG table S_CEMS_DETAILS table S_LIME_PRODUCT_DETAILS table S_LIME_BYPRODUCT_DETAILS table S_SUBPART_LEVEL_INFORMATION table PUB_DIM_FACILITY table

Subpart S table structure with clickable elements.


Subpart SS – Electrical Equipment Use

Covers GHG emissions from electrical transmission and distribution equipment, including SF6 and other fluorinated GHGs used in gas-insulated switchgear and circuit breakers.

Greenhouse Gas Subpart SS ModelSS_SUBPART_LEVEL_INFORMATION table SS_MSNG_DTA_MAK_MODL table SS_GHG_DISBURSEMENT table SS_SUM_HOSE_VALVE table PUB_DIM_FACILITY table SS_SUMMARY table SS_MSNG_DTA_EMISSION table SS_GHG_INVENTORY table SS_USER_EMISSIONS table SS_MASS_DELIV_NEW_EQ table SS_INSTALL_EMISSIONS table SS_GHG_INFORMATION table SS_EQ_SS5 table SS_GHG_ACQUISITION table SS_HOSE_VALVE table SS_MSNG_DTA_HOSE_VLV table

Subpart SS table structure with clickable elements.


Subpart T – Magnesium Production

Covers GHG emissions from magnesium production facilities.

Covers GHG emissions from magnesium production processes, including emissions from the use of cover and carrier gases such as SF6, HFC-134a, and others.

Greenhouse Gas Subpart T ModelPUB_DIM_FACILITY table T_PRODUCTION_PROCESS table T_COVER_OR_CARRIER_GAS table T_SUBPART_LEVEL_INFORMATION table

Subpart T table structure with clickable elements.


Subpart TT – Industrial Waste Landfills

Covers GHG emissions from industrial waste landfills.

Covers methane emissions from industrial waste landfills, including data on landfill design, waste characteristics, gas collection systems, and historical waste disposal practices.

Greenhouse Gas Subpart TT ModelTT_HIST_WASTE_METHOD table TT_WASTESTREAM_DETLS table TT_WASTE_DEPTH_DETAILS table PUB_DIM_FACILITY table TT_LF_GAS_COLL_DETAILS table TT_SUBPART_GHG_INFO table TT_LANDFILL_DETAILS table

Subpart TT table structure with clickable elements.


Subpart U – GHG Emissions from Electric Arc Furnace Steelmaking

Covers GHG emissions from miscellaneous carbonates production.

Covers greenhouse gas emissions resulting from electric arc furnace steel production processes, including mass balance and calcination methods.

Greenhouse Gas Subpart U ModelU_SUBPART_LEVEL_INFORMATION table U_MASS_METHODS table PUB_DIM_FACILITY table U_CALCINATION_FRAC_METHODS table U_INFO table

Subpart U table structure with clickable elements.


Subpart UU – Injection of Carbon Dioxide

Covers GHG emissions from injection of CO₂ underground for geologic sequestration.

Covers facilities that inject carbon dioxide underground for purposes other than geologic sequestration, such as enhanced oil and gas recovery.

Greenhouse Gas Subpart UU ModelUU_INJ_CO2_UNIT table PUB_DIM_FACILITY table UU_INJ_CO2_FACILITY table

Subpart UU table structure with clickable elements.


Subpart V – Nitric Acid Production

Covers GHG emissions from nitric acid production units.

Covers GHG emissions from the production of nitric acid, including reporting on facility details and nitric acid train operations.

Greenhouse Gas Subpart V ModelV_NITRIC_ACID_TRAIN table V_FACILITY_INFO table V_SUBPART_LEVEL_INFORMATION table PUB_DIM_FACILITY table

Subpart V table structure with clickable elements.


Subpart W – Petroleum and Natural Gas Systems

Covers GHG emissions from a wide range of petroleum and natural gas operations, including onshore and offshore production, gas processing, transmission, storage, and enhanced oil recovery (EOR). Subpart W includes detailed reporting requirements for numerous emission sources such as compressors, dehydrators, tanks, flares, and pneumatic devices.

Due to the large number of components and diagrams (over 40), Subpart W has a dedicated page for full details and table diagrams.

View full Subpart W details →


Subpart X – Petrochemical Production

Covers GHG emissions from petrochemical production processes including ethylene, propylene, and other feedstocks. Emissions sources include combustion units, flares, mass balance systems, and CEMS-monitored units.

Greenhouse Gas Subpart X Model

Subpart X table structure with clickable elements.


Subpart Y – Petroleum Refineries

Covers GHG emissions from petroleum refineries.

Covers GHG emissions from petroleum refineries, including emissions from process vents, flares, delayed coking, storage tanks, equipment leaks, and sulfur recovery. Methods include CEMS, engineering calculations, and mass balance approaches across multiple refinery operations.

Greenhouse Gas Subpart Y Model

Subpart Y table structure with clickable elements.


Subpart Z – Phosphoric Acid Production

Covers GHG emissions from phosphoric acid production facilities.

Covers GHG emissions from phosphoric acid production facilities. Emissions primarily result from chemical reactions in production lines and are measured using CEMS or calculated based on inorganic carbon content and process parameters.

Greenhouse Gas Subpart Z Model
Subpart Z table structure with clickable elements.

Learn More about GHGRP Subparts

For additional information about each Greenhouse Gas Reporting Program (GHGRP) subpart, including detailed regulatory context, data reporting requirements, and sector-specific guidance, visit the GHGRP Subparts Overview page on EPA.gov.

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