EPA proposed rule related to the definition of VOC
Posted by [email protected] on Nov. 11, 2024
On November 4, 2024, EPA proposed revisions to add (Z)-1-chloro-2,3,3,3-tetrafluoropropene (also known as HCFO-1224yd(Z); CAS number 111512-60-8) to the list of compounds excluded from the regulatory definition of volatile organic compounds (VOC) because it makes a negligible contribution to ground-level ozone formation.
HCFO-1224yd(Z) may be used in a variety of applications in foam expansion or as a blowing agent where it has significant performance and energy-saving advantages. It can serve as a replacement for several compounds with higher global warming potential. It also has a lower stratospheric ozone depletion potential than other alternatives, and based on the available toxicity data, it is less harmful compared with other chemicals used for the same purpose. EPA will accept comment on this proposal for 60 days after publication in the Federal Register. Learn more at: https://www.epa.gov/ozone-pollution/ozone-volatile-organic-compound-voc-exemptions-rules.
