Comment Period Reopens|for Air Conditioning Gas

     WASHINGTON (CN) – In October, the Environmental Protection Agency proposed the use HFO-1234yf, subject to use conditions, as a substitute for CFC-12 in vehicle air conditioning.
Several stakeholders asked that the comment period for the proposal be extended.
     The public will now have until Feb. 1, to comment on the proposal.
     HFO-1234yf is known as a non-ozone-depleting substance that does not contribute to stratospheric ozone depletion. It does, however, have similar heat exchange properties as CFC-12 making it viable in air conditioning systems.
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