The reported emissions exclude biogenic CO2. GHG data displayed here in units of carbon dioxide equivalent (CO2e) reflect the global warming potential (GWP) values from Table A-1 Exit, which is generally based on the IPCC’s Fourth Assessment Report (AR4) Exit, with the addition of GWPs from the IPCC’s Fifth Assessment Report for fluorinated GHGs that did not have GWPs in the AR4.

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Learn more about Global Warming Potentials


Fluorinated greenhouse gases (F-GHGs) include the most potent and longest lasting greenhouse gases emitted by human activities. The Greenhouse Gas Reporting Program (GHGRP) covers emissions of these compounds by requiring specific facilities that emit significant quantities of these compounds to report their annual emissions. These emitters include producers of fluorinated gases (F-gases) và other emitters of F-GHGs. The GHGRPhường also requires companies that supply these compounds (i.e. producers, importers and exporters) lớn report the quantity of each gas supplied each year. This page contains information about supplies and emissions of F-gases và presents summary data & graphics. For more general information about fluorinated greenhouse gases, please visit the Overview of Greenhouse Gases page.


GHGRP Data Relevant khổng lồ the AIM Act


Data reported to lớn the GHGRPhường under Subpart OO and relevant lớn the AIM Act is available below.


On this page:

Overview of Suppliers and Emitters of Fluorinated GHGs

Suppliers: These companies report information about the GHGs that they supply lớn the economy. Suppliers report the GHGs that would be emitted if all products that they produce, import, and export were released to lớn the atmosphere by their customers. Data reported by suppliers of these gases are important because most emissions of these compounds come from small pieces of equipment (refrigerators, air conditioners, etc.) whose direct emissions are not reported to lớn the GHGRP..Producers: These facilities emit fluorinated greenhouse gases during production of fluorinated chemicals for industrial and commercial use. Thus, many of these facilities are both emitters & suppliers of fluorinated GHGs.Other emitters: These facilities either:Generate fluorinated greenhouse gases as unintentional by-products of industrial processes (e.g., aluminum production); orReceive sầu và subsequently use fluorinated greenhouse gases in certain manufacturing processes (e.g., electronics). Some fluorinated greenhouse gases are unintentionally released from these manufacturing processes.

The following diagram illustrates the types of facilities required khổng lồ report fluorinated greenhouse gas data to the GHGRP..

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Supplies of Fluorinated GHGs

Suppliers of GHGs include producers, importers, và exporters of industrial gases (including F-GHGs) và importers and exporters of F-GHGs in pre-charged equipment (e.g. air conditioners, circuit breakers) & closed-cell foams. All producers must report. Additionally, companies that import or export 25,000 metric tons CO2e or more of F-GHGs, N2O và CO2 per year, either in bulk or in pre-charged equipment & closed-cell foams, must report their imports và exports. The chart below presents a summary of the net supply of F-GHGs, using data reported under Subpart OO & Subpart QQ. The "net supply" or "net CO2e" means the CO2e quantities of bulk gas produced + imported – exported – transformed – destroyed.

Quantities (Net Supply) of GHGs Reported(Quantities are presented in million metric tons per year of net CO2ea)

Bulk gas suppliers and importers và exporters of equipment containing fluorinated GHGs also report quantities of other fluorinated GHGs supplied (not shown). 

GHGRP. Data Relevant lớn the American Innovation and Manufacturing (AIM) Act

Among other provisions, the American Innovation & Manufacturing (AIM) Act of 20đôi mươi directs tekkenbasara.mobi to lớn develop a U.S. production baseline and a U.S. consumption baseline & to lớn phase down HFC production and consumption relative sầu to lớn those baselines. Data reported to lớn the GHGRP under Subpart OO (Suppliers of Industrial Greenhouse Gases) are relevant lớn the production and consumption baselines. The tables below provide aggregated Subpart OO data for AIM-listed HFCs (excluding HFC-23) from all companies that reported AIM-listed HFCs. cảnh báo that there are slight differences between the HFCs listed in the AIM Act và those listed in the Supplies of Fluorinated GHGs section above sầu.

Net Supply of AIM-Listed HFCs (Excluding HFC-23) Reported lớn GHGRPhường in Years 2011-2019(million metric tons per year of CO2e)

Imports of AIM-Listed HFCs Reported khổng lồ GHGRP. in Years 2011-2019(million metric tons per year of CO2e)

Fluorinated GHG Emissions from Fluorinated Gas Production

Facilities with F-gas production processes must report to lớn the GHGRPhường. if their emissions, in the absence of controls, would equal 25,000 metric tons CO2e per year or more, with one exception: any facility that produces hydrochlorofluorocarbon (HCFC)-22 must report if the production process generates hydrofluorocarbon (HFC)-23 as a byproduct. In addition, facilities that operate devices to lớn destroy more than 2.14 metric tons of HFC-23 annually must report. (lưu ý that production facilities, like other facilities reporting lớn the GHGRP., can cease reporting if their emissions or supplies consistently fall below certain levels for certain numbers of years. Please see the Subpart A Information Sheet or this FAQ page. )

The five main types of fluorinated GHGs are hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), sulfur hexafluoride (SF6), nitrogene trifluoride (NF3), và other fully fluorinated greenhouse gases. These fluorinated GHGs can be emitted from F-gas production as by-products, reactants, intermediates, or products, and from process vents, leaks, container venting, or destruction processes. 

HFCs are primarily used as refrigerants, foam-blowing agents, aerosol propellants, solvents & fire suppressants.<*> HFCs, ahy vọng other compounds, are substitutes for chemicals that deplete the Earth’s protective sầu ozone layer (e.g., chlorofluorocarbons (CFCs), HCFCs and halons). These ozone-depleting chemicals are not reported under the GHGRPhường. but are covered by tekkenbasara.mobi regulations at 40 CFR Part 82 (see https://www.tekkenbasara.mobige authority.gov/ozone-layer-protection).

The chart below shows reported emissions from F-gas production, by gas, over time. It includes data reported under Subpart O (HFC-23 emissions from HCFC-22 production) và Subpart L (F-GHG emissions from other F-gas production). Overall, emissions fell by 8.7 MMT CO2e between 2011 và 20191 due to lớn increases in voluntary emission controls at facilities (e.g., use of destruction devices) và some variation in the types và quantities of F-gases produced. HFC-23 emissions from HCFC-22 Production fell by 58% between 2011 & 2019, while emissions of F-GHGs from other production processes fell by 47% over the same time period. Note that this chart includes only data from production emissions và that the actual produced gases (supply) are accounted for in the Supplies of Fluorinated GHGs section.

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<*> One exception is HFC-23, which is primarily emitted as an unintentional bysản phẩm from the production of HCFC-22 và other F-GHGs.


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