76 FR 17488
EPA determined that hydrofluoroolefin-1234yf is an acceptable substitute for chlorofluorocarbon-12, an ozone-depleting substance, in motor vehicle air conditioning for new passenger cars and light-duty trucks.
EPA determined that hydrofluoroolefin-1234yf is an acceptable substitute for chlorofluorocarbon-12, an ozone-depleting substance, in motor vehicle air conditioning for new passenger cars and light-duty trucks.
EPA finalized amendments to the NESHAPs for existing stationary spark ignition reciprocating internal combustion engines.