Fifth (5th) Public Review Announcement

IIAR HC (IIAR HC-202x)

Safety Standard for Closed-Circuit Refrigeration Systems Utilizing Hydrocarbon Refrigerants

Public Review Period: August 28th, 2026 through September 27th, 2026

The fifth (5th) public review of IIAR HC (IIAR HC-202x), Safety Standard for Closed-Circuit Refrigeration Systems Utilizing Hydrocarbon Refrigerants, will be conducted from August 28th, 2026 through September 27th, 2026. Comments must be submitted to the International Institute of All-Natural Refrigeration (IIAR) by 5:00 p.m. Eastern Standard Time (EST) on September 27th, 2026.

If you are interested in reviewing the draft and submitting comments, click here to obtain a copy of the public review draft in an electronic form ("pdf" format) that you can print from your own computer.

Copies of the draft are also available at no charge by fax, or by U.S. mail on request by completing the on-line form below and submitting it to IIAR. Alternatively, you may download a request form (PDF format) and return it to IIAR if you would like to receive the draft in hard copy directly from IIAR.

Please send me a copy of the public review draft of the IIAR HC (IIAR HC-202x), Safety Standard for Closed-Circuit Refrigeration Systems Utilizing Hydrocarbon Refrigerants, via the following method (check one):

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(Click here to download a pdf file of this form)

Letter to IIAR Members | Background Information | Public Review Announcement
Public Review Draft | Online Comment Form