Honeywell to Receive SNAP Approval for HFO-1233zd Fire Suppression Total Flooding Agent

Effective Date: [pending publication in the Federal Register]

Advanced Version Acceptability Determination 32 (signed September 28, 2016) (PDF 38 pp, 196 KB)
Fact Sheet

This action presents EPA’s most recent decision to list as acceptable several substitutes in the refrigeration and air conditioning and fire suppression sectors. New substitutes are:

  • R-448A in retail food refrigeration—food processing and dispensing equipment;
  • R-449A in retail food refrigeration—food processing and dispensing equipment;
  • R-449B in several refrigeration end-uses; and
  • trans-1-chloro-3,3,3,-trifluoroprop-1-ene in total flooding fire suppression uses.

The Director of the Office of Atmospheric Programs signed this notice on 9/28/16, and the Agency is submitting it for publication in the Federal Register (FR). While we have taken steps to ensure the accuracy of this Internet version of the document, it is not the official version. Please refer to the official version in a forthcoming FR publication, which will appear on the Government Printing Office’s FDSys website ( and on ( in Docket No. EPA-HQ-OAR-2003-0118. Once the official version of this document is published in the FR, this version will be removed from the Internet and replaced with a link to the official version.

To review publicly available docket materials electronically, visit and search for docket number EPA-HQ-OAR-2003-0118. Supporting materials will be available in the Air and Radiation docket in hard copy once the final rule is published in the Federal Register.

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