Hydrofluorocarbons (HFCs) | US EPA Skip to main content An official website of the United States government Here’s how you know Here’s how you know Official websites use .gov A .gov website belongs to an official government organization in the United States. Secure .gov websites use HTTPS A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites. Menu Search Search Environmental Topics Environmental Topics Air Bed Bugs Chemicals, Toxics, and Pesticide Emergency Response Environmental Information by Location Health Land, Waste, and Cleanup Lead Mold Radon Research Science Topics Water Topics A-Z Topic Index Laws & Regulations Laws & Regulations By Business Sector By Topic Compliance Enforcement Guidance Laws and Executive Orders Regulations Report a Violation Report a Violation Environmental Violations Fraud, Waste or Abuse About EPA About EPA Our Mission and What We Do Headquarters Offices Regional Offices Labs and Research Centers Planning, Budget, and Results Organization Chart EPA History Hydrofluorocarbons (HFCs) Technology Transitions EPA Administrator signs final rule reconsidering certain requirements under the Technology Transitions provisions of the AIM Act. Transport Refrigeration Units (TRUs) Proposed Rule EPA Administrator signs proposed rule exempting road and intermodal container transport refrigeration units from HFC leak repair requirements. EPA releases HFC allowance allocation data EPA releases notice on 2022 – 2025 data on HFC Allocation Program data for public comment by 8/27/2026. 123 The American Innovation and Manufacturing (AIM) Act authorizes EPA to address hydrofluorocarbons (HFCs) by: phasing down their production and consumption, maximizing reclamation and minimizing releases from equipment, and facilitating the transition to next-generation technologies through sector-based restrictions on HFCs. This website provides information on HFCs and the AIM Act. What's New EPA redistributes CY2026 HFC allowances due to recent administrative consequences EPA releases 2022 – 2025 HFC Allowance Allocation Program data for public comment by 8/27/2026 EPA issues calendar year 2026 HFC allowances set aside for MDIs EPA Administrator signs final rule reconsidering certain requirements under the Technology Transitions provisions of the AIM Act EPA Administrator signs proposed rule exempting road and intermodal container transport refrigeration units from HFC leak repair requirements HFC Allowance Allocation and Reporting Learn about production and import restrictions, the allocation of allowances, and reporting requirements. See Allowance Allocations Technology Transitions Learn about EPA's work facilitating the transition to climate friendly alternatives and the petition process under subsection (i) of the AIM Act. See Technology Transitions Managing HFC Use and Reuse Learn about how EPA is managing the use and reuse of HFCs and substitutes under subsection (h) of the AIM Act. See Managing Use & Reuse HFC Data Hub Explore HFC Data, including calculated consumption and production and allowances expended. See HFC Data Notices and Rulemakings Access a list of notices, rulemakings, and petitions under all programmatic areas of the AIM Act. See Notices, Rulemakings, and Petitions Public Meetings and Other Resources Register for upcoming public meetings, access content from past meetings, and learn more about the Kigali Amendment, enforcement, and Inflation Reduction Act Provisions related to the AIM Act. See Public Meetings and Other Resources Related Programs Ozone Layer Protection Stationary Refrigeration and Air Conditioning (Section 608) Significant New Alternatives Policy (SNAP) Program Contact Us About Reducing HFCs to ask a question, provide feedback, or report a problem. Last updated on August 7, 2026 Assistance Spanish Arabic Chinese (simplified) Chinese (traditional) French Haitian Creole Korean Portuguese Russian Tagalog Vietnamese Discover. Accessibility Statement Budget & Performance Contracting EPA www Web Snapshot Grants No FEAR Act Data Plain Writing Privacy and Security Notice Connect. Data Inspector General Jobs Newsroom Regulations.gov Subscribe USA.gov White House Ask. Contact EPA EPA Disclaimers Hotlines FOIA Requests Frequent Questions Site Feedback Follow.