As IIAR continues its work to advance the global adoption of natural refrigerant standards, common questions often arise regarding international alignment and recognition. Below are answers to some of the most frequently asked questions from members, partners, and industry stakeholders.
A: Yes. IIAR Standards have been adopted or referenced by national authorities, code bodies, or technical institutions across multiple countries, particularly in Latin America. Countries like Colombia, Costa Rica, and Chile have already integrated IIAR Standards into national regulations or design guidelines. Additionally, IIAR standards are referenced globally in international model codes such as the International Building Code (IBC), International Fire Code (IFC), Uniform Mechanical Code (UMC), and NFPA standards. These references make IIAR standards effectively part of international code frameworks.
A: Not yet. While several international and national organizations address refrigeration system safety, there is no single, unified global standard for ammonia refrigeration. However, IIAR Standards—specifically developed for ammonia and other natural refrigerants—are increasingly recognized as the de facto technical guidance for safe and efficient ammonia system design, operation, and maintenance. Countries that have adopted the international model codes listed in Q1 will also need to comply with IIAR Standards.
A: IIAR is actively working with international stakeholders and partner organizations to promote the global alignment of safety and performance standards for ammonia refrigeration. In 2023, IIAR’s International Committee compiled a global inventory of codes and practices related to ammonia refrigeration across 14 countries. This initiative lays the foundation for identifying gaps, harmonizing requirements, and exploring the development of a truly global standard. IIAR’s collaboration with IIR, IoR, and other partners also supports this long-term vision.
A: Yes. IIAR actively updates this website as new information becomes available. If you have updates to share, or if you can provide details about a country not yet listed, please complete THIS SURVEY. Your contributions help ensure the information remains current and useful for all industry stakeholders.
A: Yes. As of August 2025, IIAR’s Marketing and Compliance Committees collected and published information for the United States, with a focus on state and local regulatory requirements for ammonia refrigeration systems.
At the federal level, ANSI/IIAR Standards are recognized as the Recognized and Generally Accepted Good Engineering Practices (RAGAGEP) in the U.S. This information is available on the U.S. webpage and is reviewed periodically by both committees. If you notice any discrepancies between the posted information and actual requirements, please contact us.