制冷剂推荐:R290,HFC-32,HFO-1234yf，HFO-1234ze(E),R454A,R454B,R454C,R455A,R457A,R516A
背景：
环保署署长Michael S.Regan于2024年5月22日签署了以下文件
它将出现在政府印刷局的网站上(https://www.govinfo.gov)以及Regulations.gov(http://www.regulations.gov)载于案卷号EPA-Q-OAR-2023-0043。
根据使用条件，该行动列出了几种可接受的替代品，用于零售食品制冷、商用制冰机、工业过程制冷、冷藏仓库和溜冰场。
（The EPA Administrator, Michael S. Regan, signed the following document on May 22,2024。
which will appear on the Government Printing Office's website (https://www.govinfo.gov) and on Regulations.gov (http://www.regulations.gov) in Docket No. EPA-HQ-OAR-2023-0043.
this action lists several substitutes as acceptable, subject to use conditions, for retail food refrigeration, commercial ice machines, industrial process refrigeration, cold storage warehouses, and ice skating rinks.）
