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Refrigerants/ODS
National Summary
Ozone-depleting substances (ODSs) break down the stratospheric ozone layer through the reaction of chlorine and bromine with ozone. Sources of chlorine and bromine are both natural and man-made. Man-made sources include: Chlorofluorocarbons , Hydrochlorofluorocarbons (HCFCs, Carbon tetrachloride, Methyl bromide, Methyl chloroform, and Halons. These chemicals are very stable in the lower atmosphere and do not break down, nor are they soluble in water. Thus, these chemicals rise through the atmosphere and mix with the ozone in the upper atmosphere. contribute to climate change, or result in other harm to public health or the environment.
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Final Regulations 40 CFR 82 - Adjustments to the Allowance System for Controlling HCFC Production, Import, and Export 04/03/2013National
Final Regulations 40 CFR 82 - Final Regulations re HCFC Trade Language, Ratification Status of Parties to the Montreal Protocol; and Harmonized Tariff Schedule Commodity Codes 03/26/2014National
Final Regulations 40 CFR 82 - Listing of Substitutes for Ozone Depleting Substances--Fire Suppression and Explosion Protection 12/14/2012National
Proposed Regulations 40 CFR 82 - Proposed Regulations re HCFC Trade Language, Ratification Status of Parties to the Montreal Protocol; and Harmonized Tariff Schedule Commodity Codes 03/26/2014National
Final Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Adjustments to the Allowance System for Controlling HCFC Production and Import, 2020-2029; and Other Updates; Final Rule 03/17/2020National
Proposed Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Adjustments to the Allowance System for Controlling HCFC Production, Import and Export; Proposed Rule 12/26/2013National
Final Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Determination 28 for Significant New Alternatives Policy Program 05/17/2013National
Final Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Determination 34 for Significant New Alternatives Policy Program 10/04/2018National
Final Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Determination 35 for Significant New Alternatives Policy Program 11/25/2019National
Final Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Determination 36 for Significant New Alternatives Policy Program 12/11/2020National
Final Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Determination 37 for Significant New Alternatives Policy Program 01/20/2022National
Proposed Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Extension of the Laboratory and Analytical Use Exemption for Essential Class I Ozone-Depleting Substances 08/07/2020National
Final Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Extension of the Laboratory and Analytical Use Exemption for Essential Class I Ozone-Depleting Substances 08/23/2021National
Proposed Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Listing of HFO-1234yf Under the Significant New Alternatives Policy Program for Motor Vehicle Air Conditioning in Nonroad Vehicles and Servicing Fittings for Small Refrigerant Cans 12/06/2021National
Final Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Listing of HFO-1234yf Under the Significant New Alternatives Policy Program for Motor Vehicle Air Conditioning in Nonroad Vehicles and Servicing Fittings for Small Refrigerant Cans 05/04/2022National
Proposed Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Listing of Substitutes for Ozone-Depleting Substances--Fire Suppression and Explosion Protection 09/19/2012National
Final Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Listing of Substitutes for Ozone-Depleting Substances--Fire Suppression and Explosion Protection 09/19/2012National
Final Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Listing of Substitutes for Ozone-Depleting Substances--Fire Suppression and Explosion Protection 04/29/2013National
Proposed Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Listing of Substitutes for Refrigeration and Air Conditioning and Revision of the Venting Prohibition for Certain Refrigerant Substitutes 07/09/2014National
Proposed Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Listing of Substitutes Under the Significant New Alternatives Policy Program 06/12/2020National
Final Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Listing of Substitutes Under the Significant New Alternatives Policy Program in Commercial and Industrial Refrigeration; Final Rule 06/13/2024National
Proposed Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Listing of Substitutes Under the Significant New Alternatives Policy Program in Commercial and Industrial Refrigeration; Proposed Rule 05/24/2023National
Final Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Listing of Substitutes Under the Significant New Alternatives Policy Program in Refrigeration, Air Conditioning, and Fire Suppression; Final Rule 04/28/2023National
Proposed Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Listing of Substitutes Under the Significant New Alternatives Policy Program in Refrigeration, Air Conditioning, and Fire Suppression; Proposed Rule 07/28/2022National
Final Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Listing of Substitutes Under the Significant New Alternatives Policy Program; Final Rule 05/06/2021National
Proposed Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Revision of the Venting Prohibition for Specific Refrigerant Substitutes 04/12/2013National
Final Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Revision of the Venting Prohibition for Specific Refrigerant Substitutes 05/23/2014National
Final Regulations 40 CFR 82 - Protection of Stratospheric Ozone: Revisions to the Refrigerant Management Program's Extension to Substitutes 03/11/2020National
Final Regulations 40 CFR 82 - Protection of Stratospheric Ozone: The 2013 Critical Use Exemption From the Phaseout of Methyl Bromide 07/22/2013National
Proposed Regulations 40 CFR 82 - Protection of Stratospheric Ozone: The 2014 and 2015 Critical Use Exemption from the Phaseout of Methyl Bromide 03/07/2014National
Proposed Regulations 40 CFR 82 - Protection of the Stratospheric Ozone: Motor Vehicle Air Conditioning System Servicing 03/30/2020National
Proposed Regulations 40 CFR 82 - The 2013 Critical Use Exemption From the Phaseout of Methyl Bromide 12/14/2012National
Final Regulations 40 CFR 84 - Phasedown of Hydrofluorocarbons: Adjustment to the Hydrofluorocarbon Production Baseline 07/12/2023National
Final Regulations 40 CFR 84 - Phasedown of Hydrofluorocarbons: Allowance Allocation Methodology for 2024 and Later Years; Final Rule 07/20/2023National
Proposed Regulations 40 CFR 84 - Phasedown of Hydrofluorocarbons: Allowance Allocation Methodology for 2024 and Later Years; Proposed Rule 11/03/2022National
Proposed Regulations 40 CFR 84 - Phasedown of Hydrofluorocarbons: Restrictions on the Use of HFCs Under the AIM Act in Variable Refrigerant Flow Air Conditioning Subsector 06/26/2024National
Proposed Regulations 40 CFR 84 - Phasedown of Hydrofluorocarbons: Restrictions on the Use of HFCs Under the AIM Act in Variable Refrigerant Flow Air Conditioning Subsector; Reopening the Comment Period 08/12/2024National
Proposed Regulations 40 CFR 84 - Phasedown of Hydrofluorocarbons: Restrictions on the Use of HFCs Under the AIM Act in Variable Refrigerant Flow Air Conditioning Subsector; Reopening the Comment Period 08/14/2024National
Proposed Regulations 40 CFR 84 - Phasedown of Hydrofluorocarbons: Review and Renewal of Eligibility for Application-Specific Allowances; Proposed Rule 09/16/2024National
Final Regulations 40 CFR 84 - Phasedown of Hydrofluorocarbons: Technology Transitions Program Residential and Light Commercial Air Conditioning and Heat Pump Subsector 12/26/2023National
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