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IIAR Seeks to Streamline U.S. Safety Rules for Ammonia Refrigeration
A task force has begun discussion with EPA about eliminating regulatory overlap with OSHA and deferring to IIAR standards, among other changes.
Michael Garry
NRDC Outlines Case Against Revision of EPA’s Technology Transitions Rule
The NGO is part of a consolidated lawsuit challenging delays in low-GWP-refrigerant requirements.
Study Finds Leakage of CCl4 Used as HFO Feedstock Could Delay Ozone Layer Recovery
Led by Empa, researchers estimate CCl4 emissions amount to 4.3% of production, contributing to seven-year delay in restoration of ozone layer.
U.S. State Attorneys General Challenge EPA’s Revision of Technology Transitions Rule
Eighteen states and two localities follow trade groups in asking courts to reverse delays in lowering allowable GWP of refrigerants in commercial and industrial refrigeration.
U.S. EPA Proposes Monitoring TFA in Drinking Water
TFA, an HFO byproduct, is among 30 chemicals under review; the agency is holding webinars on the topic on August 11 and 12, with written feedback due August 31.
European Food Safety Authority Lowers Values for Safe Consumption of TFA
Intended to support consumer protection regulations, EFSA’s updated ADI and ARfD values are based on recent animal studies that showed TFA reducing levels of a thyroid hormone.
ATMO America: New York Environmental Agency Declares Support for Natural Refrigerants
Suzanne Hagell of the NYSDEC explains how natural refrigerant-based systems help the state achieve the HFC-reduction goals it established in its updated regulations.
EIA Urges U.K. to Adopt National Cooling Plan that Includes Natural Refrigerants
In the wake of heat waves, the NGO supports the adoption of passive cooling and energy-efficient air-conditioning that use refrigerants like propane rather than HFCs and HFOs.
ATMO America: IIAR Updating CO2 Safety Standard to Address High-Pressure Issues
New Addendum A helps to calculate minimum discharge capacity for relief valves; IIAR research committee is looking at pressure-discharge piping and low-side pressure.
AHRI and Other Trade Groups Challenge U.S. EPA’s Reconsideration of Technology Transitions Rule
The Alliance for Responsible Atmospheric Policy, HARDI, PHCC and ACCA also oppose extension of deadlines for commercial refrigeration applications to switch to lower-GWP refrigerants.
ATMO America: Alternative Cooling Start-Ups Seek Industry Partners to Commercialize Technology
Pascal, MIMiC Systems and Magnotherm are at different stage of development with systems that generate cooling and heating with solid materials rather than gases.
ATMO America: Experts Chart Path for Natural Refrigerants in HVAC
Êffecterra is developing a CO2 chiller/heat pump while DMG North offers training on a CO2 heat pump; Aris Hydronics is piloting R290 air-to-water heat pumps while UC Davis is researching advances in R290 air-to-water heat pumps.
Hanon Systems Estimates TFA Levels Generated by Automotive F-Gas Emissions
The manufacturer’s new report calculates past and future generation of the ultrashort-chain PFAS in the atmosphere, pointing out the availability of natural alternatives.
Kysor Warren Epta U.S. to Have Five FTE Transcritical Installations
Five stores in the southern U.S. will use FTE technology to increase efficiency in warm climates.
ATMO America to Feature Funding Opportunities for Natural Refrigerant Installations
Supermarkets and other end users will be able to meet with several organizations that offer financial assistance next week in Tarrytown, New York.
TFA Reduces Antibody Production in Human Study at Unexpected Levels
University of Milan researchers find f-gas byproduct TFA’s effects on the immune system in lab tests are similar to those of known immunotoxicant PFOS.
U.S. EPA Announces Final Revision of Technology Transitions Rule, Delaying Use of Low-GWP Refrigerants
The agency also proposes an exemption to leak repair requirements for transport refrigeration units.
Hillphoenix Continues to Enhance its CO2 Portfolio to Meet Growing Market Demand in North America
Over the last several years, the OEM has established a ‘platform portfolio’ of modularly designed products that can be built on high-speed assembly lines and cover the breadth of applications needed to support food retailers.
Democrats Propose PFAS Legislation in U.S. Congress That Would Include F-Gases and TFA
McCollum in the House and Durbin in the Senate introduce bill that defines PFAS as having one fully fluorinated carbon atom, changing EPA’s definition.
New York Bills Attempt to Roll Back State HFC Rules to Align with the U.S. AIM Act
Claiming the HFC regulations drive higher costs, the bills follow a lawsuit by trade groups that would eliminate the regulations altogether.
New York Grocer DeCicco & Sons to Open Ninth CO2 Store and First R290 Store
On June 1 CEO John DeCicco Jr will host a tour of his Sleepy Hollow, New York, store’s CO2 and advanced heat reclaim system, which he will discuss the next day at ATMO America in nearby Tarrytown.
Supermarket Trade Group Seeks Support for Transition to Natural Refrigerants in New York
The National Supermarket Association, serving urban independent stores, posts position paper outlining obstacles to adoption of CO2 and R290 systems that would comply with ambitious state regulations.
ECHA Launches Consultation on SEAC’s Draft Opinion on PFAS
The European Chemicals Agency has invited stakeholders to comment until May 25 on the draft opinion of its SEAC Committee on the proposed restriction of PFAS, including f-gases.
NASRC Survey: Transcritical CO2 Will Dominate in New U.S. Retail Stores Through 2029
Transcritical CO2 was selected as the refrigeration system at 1,470 out of more than 2,000 new sites in survey of large chains.
Study at Cargill Plant Finds Airflow Diffusers Shorten Product Cooling Time
Diffusers reduce ammonia-based cooling time of turkey rolls by two to three hours.
Superpollutant Action Initiative Is Launched to Target F-Gases and Other High-GWP Substances
Seven U.S. companies have pledged $100 million to the program, which includes cutting refrigerant emissions through supplier engagement.
ATMO LATAM: End Users Outline Success with Natural Refrigerants in Latin America
CO2 systems in particular were featured in numerous retail and industrial installations at the Bogotá conference.
Copeland’s Medium-Temp Scroll Compressor Seen as Expanding CO2 Market in North America
The unit supports smaller CO2 racks and condensing units, accommodating convenience stores and small supermarkets while enabling remodels of larger stores, Copeland says.
Trade Groups Appeal New York Court Decision Rejecting Effort to Stop HFC Regs
AHRI and HARDI continue to argue for annulment of New York State HFC regulations based on concerns about enforcement, cost and the availability of compliant refrigerant.
California Grant of $1.5 Million to Fund Research on Risk of Propane in Outdoor Heat Pumps
The AHRTI will lead the research, which would facilitate the use of higher propane charges in standards and the adoption of ATWHPs in the North American market.
Guide to Working with Propane Available in English
Previously published in Norwegian and German, Propane, Naturally Safe is a best-practice guide for heat pumps and refrigeration systems using R290 and other A3 refrigerants.
Canadian Researchers Find Marked Decline of Atmospheric TFA During COVID
They attribute the drop to the reduction in usage of short-lived precursor HFO-1234yf, notably in car air-conditioning.
Duke University Researchers Study Potential Link Between PFAS, Including TFA, and Thyroid Dysfunction in Firefighters
Two antibodies that can sometimes disrupt thyroid function were monitored in a small number of firefighters who were tested for PFAS, including TFA, but the results to date are inconclusive.
BOCK CO2 Compressors Found to Vibrate Less at Ohio Supermarket
A new Danfoss whitepaper reports an 83% reduction in vibrations of compressors compared to legacy CO2 units.
NASRC Training Event to Address CO2 Knowledge Gap in New York
The three-day February event in Poughkeepsie will offer commercial and industrial technicians classroom and some hands-on sessions as well as an exhibit hall featuring natural refrigerant products and services.
Monitoring of PFAS, Including TFA, Begins Under EU Drinking Water Directive
As of January 12, member states must measure either total PFAS, including TFA, or the sum of 20 PFAS, with limits of 0.5mcg/L and 0.1mcg/L, respectively.
U.S. EPA Says Enforcement of January 2026 Deadlines for Technology Transitions Rule ‘a Low Priority’
January 1 deadlines addressed by reconsideration of the rule apply to 150/300 GWP limits for cold storage and remote condensing units and to HVAC installation.
New York Supreme Court Rules Against Challenge to HFC Regulations
The AHRI and HARDI may appeal the ruling, which maintains New York’s aggressive restrictions on the HFC refrigerants.
Industrial End Users Go Back to School
The Industrial Refrigeration Consortium, based at the University of Wisconsin, helps U.S. food processors and warehouses optimize refrigeration systems using ammonia or other natural refrigerants, explains Director Doug Reindl.
Copeland Debuts CO2 Scroll Compressor in North America
The award-winning unit, already available in Europe, features dynamic vapor injection that eliminates the need for parallel compression.
New York Grassroots Group Leads Successful Refrigerant Recycling Drives
New Yorkers for Cool Refrigerant Management is recognized for organizing local appliance pickups that prevent the emissions of hundreds of thousands of pounds of CO2e.
ATMO Europe: Taking a Stand on PFAS
Coop Denmark, led by chemical strategy manager Malene Teller Blume, decided to eliminate PFAS in its products years before other companies and policymakers acted.
Hillphoenix Launches First Industrial CO2 Rack Platform, the AdvansorUltra
The move is a reflection of the growing adoption of transcritical CO2 systems in the industrial market and the uptick of Hillphoenix’s industrial CO2 business.
EU/Swiss Proposal on Reducing Emissions of Ozone-Depleting Feedstocks Blocked at MOP37
Saudi Arabia, India, the U.S. and Australia opposed a plan to cut emissions of feedstocks like HCFC-22 and carbon tetrachloride used in the production of HFOs, report environmental groups.
EIA Urges Investors in European Food Retailers to ‘Care About Cooling’
The financial sector is in a position to shape retail behavior and cut cooling-related CO2e emissions, says Senior Climate Campaigner Fionnuala Walravens.
Pressure Exchanger Device for CO2 Refrigeration Found to Cut Energy and Water Use at Stores in U.S. and Europe
Energy Recovery’s PX G1300 device provided up to 15% in annual energy savings and up to 460,000gal in annual water savings, the company says.
U.S. EPA Proposes New SNAP Rule Supporting Hydrocarbons in HVAC
Proposed Rule 27 includes an option for accepting refrigerants based on certification by a Nationally Recognized Testing Laboratory.
Copeland Named Winner of 2026 AHR Expo Innovation Award in Refrigeration Category
The award recognizes Copeland’s transcritical CO2 scroll compressors with dynamic vapor injection technology.
Many Stakeholders Oppose Delays to U.S. EPA’s Technology Transitions Rule
In EPA hearing manufacturers, trade groups and NGOs largely reject proposal to postpone lower refrigerant GWP limits to 2032.
Timing of U.S. EPA’s Reconsideration of Technology Transitions Rule Raises Concerns
It needs to be finalized before January 1, 2026, or the original rule will take effect, creating confusion, noted FMI Energy conference speaker Keilly Witman.