The Natural Refrigeration Review is a quarterly publication that contains technical articles, regulatory and code updates, industry news and information about IIAR activities and publications. It is distributed by email to all IIAR Members and IIAR Contact lists.
SPRING 2026 NATURAL REFRIGERATION REVIEW
The Natural Refrigeration Review issues are available as a PDF downloads for both lIAR Members and Non-members, or as individual article posts below. Click the button below to view the full issue, or scroll through all the individual issue articles below.
IIAR to Release CO₂ Fact Sheet
In response to growing demand for accessible, technically sound guidance, the International Institute of All-Natural Refrigeration (IIAR) has released a new CO₂ Refrigeration Fact Sheet—a concise overview of the use of CO₂, including safety considerations, system guidelines, and design considerations. Additional fact sheets for ammonia and hydrocarbons will follow. IIAR Marketing Committee Chair, Stephanie Smith, said her committee was responsible for producing the fact sheets to help business owners choose which natural refrigerant applications may fit best for them.
Read MoreIIAR Peru Chapter Meeting Draws Full House, Focuses on Sustainability and Standards
The IIAR Peru Chapter's latest International Seminar, June 4-5, drew a packed house, with almost 300 attendees from over 14 countries and a high-caliber lineup of technical presentations, underscoring the region’s growing commitment to natural refrigerants and the standards that support them. Held in Lima, the two-day event maxed out its registration capacity and delivered what organizers called “a great industry turnout” with strong engagement from engineers, end users, and government representatives.
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IIAR Represents North America at World Refrigeration Day
In a year defined by climate urgency and supply chain volatility, the International Institute of Refrigeration, IIR, said it convened a landmark event in Paris to mark World Refrigeration Day 2025. With over 170 participants from 60-plus countries, IIR said the gathering spotlighted the global cold chain as the foundation of modern civilization and called on all countries to establish National Refrigeration Committees to take climate action.
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Know Your Incident Timelines
Like a good science fiction plot, any ammonia-related incident has two parallel timelines. Making sure you’re aware of both of them, even before anything happens, can make the difference between public relations and operational horror story, and a good outcome.
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Department of Labor Advances Regulatory Reforms
As the Trump Administration enters the second half of its first year, efforts continue to reform the structure and operation of the federal government. President Trump signaled deregulation would be a priority for his administration early in his term with the signing of an Executive Order entitled “Unleashing Prosperity Through Deregulation." In his first term, President Trump implemented aggressive deregulation efforts by mandating that two federal regulations be eliminated for each new rule issued. The President has directed federal agencies to take an even bolder step by eliminating ten existing regulations for every new rule. Since the signing of the order, federal agencies have begun the process of identifying regulatory changes.
Read MoreApplying Psychrometrics in Refrigeration
Psychrometrics isn’t just a chart on the wall – it’s the language of air. And for many facility or production issues, speaking that language often means looking beyond refrigeration as the only option available to solve moisture control problems. “Refrigeration can only solve your moisture problem to a certain point, whereas with a desiccant, you can go way beyond what refrigeration alone can do,” said Tom Peterson, founder and CEO of Climate by Design International. Many people don’t think of applying psychrometrics as a solution to the problems they encounter because they’re just not used to a thought process that might involve beyond-the-refrigerant reasoning, he added. “Not everyone has that experience factor [that would lead them to consider psychrometrics]. They may have been taught to think only in tons of refrigeration, because our industry is so focused on refrigeration alone,” he said. “But there are limits to how dry you can get with just refrigeration before you start dealing with things like frost, sequential defrost, and other problems.”
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President’s Message
IIAR has created several different membership tiers to meet a wide range of needs. Individual Company membership is a single membership class where a member is registered under their company of employment. If additional employees from the company would like to join, companies can upgrade to a Group Membership, which includes up to 25 members. If companies would like to add more than 25 employees, they can do so at a significantly discounted rate, only $100.
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2025 Conference Recap: Annual Meeting Sets New Record
More than 1,850 attendees participated in the International Institute of All-Natural Refrigeration’s Natural Refrigeration Conference & Heavy Equipment Expo in Phoenix, Arizona. The event provided the latest information on industry issues, technical knowledge and networking and as well as an opportunity to see new equipment for those involved in the natural refrigeration industry.
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IIAR Gives 2025 Awards for Presentation Excellence
Karel Israel Ortiz Reyes received the 2025 award for his technical paper presentation that examined “Encontrando el balance entre consumo energético y de agua en condensadores y torres de enfriamiento” (“Finding the balance between energy and water consumption in condensers and cooling towers”). James Booth of Sustainachem (Hannibal, MO) received the 2025 award for his technical paper presentation that focused on “Understanding Water Treatment Performance.”
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AIM Act Faces Uncertainty
Portions of the American Innovation and Manufacturing (AIM) Act are under scrutiny as part of a broader deregulatory agenda, casting uncertainty over the future of U.S. climate policy for refrigerants. The Environmental Protection Agency (EPA) has announced it will reconsider the Technology Transitions Rule, while Congress is reviewing the Refrigerant Management Rule—two key components of the AIM Act framework.
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A Look Inside the “Big, Beautiful Bill”
President Trump has made it a top priority to pass a tax package that would make many provisions of the Tax Cuts and Jobs Act (TCJA) permanent, as well as providing additional tax relief through policies such as no tax on tips. Republicans in Congress are planning to use the Budget Reconciliation process to move the “Big, Beautiful Bill” with the goal of completion before August recess.
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Mapping Global Standards for Industrial Refrigeration: IIAR’s International Committee Leads the Way
In 2023, the IIAR International Committee launched a far-reaching research initiative to catalog the standards and codes governing industrial refrigeration systems, especially those using ammonia and other natural refrigerants—across key international markets. The result of this initiative is a dataset that provides insights into the regulatory landscape of 14 countries across Latin America, Europe, Asia, and Oceania. This research is a milestone in IIAR’s international engagement and a valuable tool for advancing natural refrigerant adoption globally.
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NRF Fun Day Raises $40,000 for Scholarships and Research
The Natural Refrigeration Foundation’s Fun Day during the annual conference featured golf and Bingo, raising around $40,000 to support the foundation’s scholarships and research. “The golf event was a success with 100 golfers—68 individual golfers and eight President’s Brackets teams of four people—at the Arizona Grand Resort.
Read MoreIndustry Stakeholders Continue Work on Critical Task Guidelines
The Critical Task Guidance for Ammonia Refrigeration System Emergency Planning is a key resource designed to support employers, government regulators, and public safety responders in preparing for and mitigating ammonia-related incidents. The guidance, which was released in 2021, promotes a proactive approach to safety in facilities where ammonia refrigeration systems are in use and is currently being revised in response to feedback from users, regulatory agencies, and committee review. The first edition was developed by members of the International Institute of Ammonia Refrigeration (IIAR), Refrigerating Engineers and Technicians Association (RETA), Global Cold Chain Alliance (GCCA), and Ammonia Safety and Training Institute (ASTI). It incorporated input from multiple regulatory bodies and aimed to provide foundational safety practices.
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IIAR Announces New Leadership Structure
The International Institute of All-Natural Refrigeration said it has shifted IIAR’s leadership to a new, more sustainable structure, reorganizing internal Vice President roles to fully support IIAR’s mission. “Under this new structure, a core team of four executives will drive every aspect of IIAR,” said IIAR president Gary Schrift. “This change supports the IIAR executive committee’s and my efforts towards a sustainable organization."
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Refrigeration Industry Eyes Deregulation
The Trump administration is renewing its focus on deregulation, with potential rollbacks that could significantly affect the natural refrigerant and broader chemical safety industries. "The Trump administration is making deregulation a priority, and the goals are to reduce the number of regulations and reduce the cost of regulations. It's part of a broader effort across government, and some changes will have a direct impact on IIAR members,” said Lowell Randell, director of government relations for IIAR. “We don’t have many details on anything yet. It is all prospective and potential, but we can get clues from what happened in the first Trump administration.”
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Lesson Learned: The Value of Pre-Emergency Preparedness
Are you prepared? I think most of us think we are prepared, at least to deal with whatever we expect to happen. The trouble is that often what we come up against is not something we expected, therefore we are not prepared for that. For ammonia refrigeration whether a system has 400 lbs. or 40,000 lbs (or more) we should do pre-emergency planning and training. Having people, training, equipment, etc. in place and properly functioning before the emergency can greatly reduce the impact of an incident. The majority of people do not consider their preparation for an emergency, and only seriously think about what they should do after the emergency occurs.
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Emergency Preparedness Means Building Relationships
Emergency preparedness is often taught as a concept supported by three critical legs of a stool: government, public safety responders, and industry. Each leg plays a vital role, and the stability of the whole structure depends on the coordination of all three, making it important for those in the industry to foster strong relationships. If facilities and first responders work together and communicate in a way they can all understand, they have an advantage. "If you've trained your team operationally to a first responder level, which means that you can have the capabilities in to address first-responder related challenges, and if you do that together with a fire service on what they can do to support on that initial first 30 minutes, you're ahead of the ball game right off the bat,” Smith said.
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IIAR Releases State of the Industry Report
The International Institute of All-Natural Refrigeration published its eighth State of the Industry Report, covering IIAR’s education, training and advocacy efforts as well as a look forward at the trends shaping the industry in the coming year.
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A Message From Our Conference Chair
I’m excited to welcome you to Phoenix as part of the 47th IIAR conference. It’s hard to believe that our organization recently blew past five decades of work on behalf of this industry! Much of that work happens at our annual conference, so welcoming you this year is more than just a hello, it’s a call to dig in, get involved, network, and help your colleagues carry on this awesome tradition of advancing natural refrigerants here and around the world.
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