March 1st, 2019
To: IIAR Members
Re: First (1st) Public Review of Standard BSR/IIAR CO2-20xx, Safety Standard for Closed-Circuit Carbon Dioxide Refrigeration Systems.

A first (1st) public review of draft standard BSR/IIAR CO2-20xx, Safety Standard for Closed-Circuit Carbon Dioxide Refrigeration Systems is now open. The International Institute of Ammonia Refrigeration (IIAR) invites you to make comments on the draft standard. Substantive changes resulting from this public review will also be provided for comment in a future public review if necessary.

BSR/IIAR CO2-20xx, specifies the minimum requirements for safe design, safe installation, start-up, and inspection, testing, and maintenance (ITM) tasks applicable to stationary closed-circuit carbon dioxide refrigeration systems. It presupposes that the persons who use the document have a working knowledge of the functionality of carbon dioxide refrigeration system(s) and basic carbon dioxide refrigeration practices and principles. This standard is intended for those who design, install, start-up, and inspect, test, and maintain stationary closed-circuit carbon dioxide refrigeration systems. This standard shall apply only to stationary closed-circuit refrigeration systems utilizing carbon dioxide as the refrigerant. It supplements existing general refrigeration standards issued by IIAR and other organizations such as ASHRAE, ASME, and ANSI. It is not intended to supplant existing safety codes (e.g., model mechanical or fire codes).

IIAR has designated the draft standard as BSR/IIAR CO2-20xx. Upon approval by the ANSI Board of Standards Review, the standard will receive a different name that reflects this approval date.

We invite you to participate in the first (1st) public review of BSR/IIAR CO2-20xx. IIAR will use the American National Standards Institute (ANSI) procedures to develop evidence of consensus among affected parties. ANSI's role in the revision process is to establish and enforce standards of openness, balance, due process and harmonization with other American and International Standards. IIAR is the ANSI-accredited standards developer for BSR/IIAR CO2-20xx and is responsible for the technical content of the standard.

This site includes links to the following attachments:

The 45-day public review period will be from March 1st, 2019 through April 15th, 2019. Comments are due no later than 5:00 pm Eastern Standard Time (EST) on April 15th, 2019.

Thank you for your interest in the public review of BSR/IIAR CO2-20xx, Safety Standard for Closed-Circuit Carbon Dioxide Refrigeration Systems.