Environmental Protection Agency
On April 28, 2022, the U.S. Environmental Protection Agency (EPA) published a proposed rule seeking comments in response to a petition requesting the revision of the EPA's regulatory definition of volatile organic compounds (VOC) to exempt trans-1,1,1,4,4,4- hexafluorobut-2-ene (also known as HFO-1336mzz(E); CAS number 66711-86- 2). The EPA is now taking final action to revise the regulatory definition of VOC under the Clean Air Act (CAA). This final action adds HFO-1336mzz(E) to the list of compounds excluded from the regulatory definition of VOC on the basis that this compound makes a negligible contribution to tropospheric ozone (O<INF>3</INF>) formation.
Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Environmental Protection Agency 40 CFR Part 51 [EPA-HQ-OAR-2021-0420; FRL-8371-01-OAR] RIN 2060-AV24 AGENCY: Environmental Protection Agency (EPA). ACTION: Final rule. SUMMARY: On April 28, 2022, the U.S. Environmental Protection Agency (EPA) published a proposed rule seeking comments in response to a petition requesting the revision of the EPA's regulatory definition of volatile organic compounds (VOC) to exempt trans -1,1,1,4,4,4-hexafluorobut-2-ene (also known as HFO-1336mzz(E); CAS number 66711-86-2). The EPA is now taking final action to revise the regulatory definition of VOC under the Clean Air Act (CAA). This final action adds HFO-1336mzz(E) to the list of compounds excluded from the regulatory definition of VOC on the basis that this compound makes a negligible contribution to tropospheric ozone (O 3 ) formation. DATES: This final rule is effective on April 10, 2023. ADDRESSES: The EPA has established a docket for this action under Docket ID No. EPA-HQ-OAR-2021-0420. All documents in the docket are listed on the https://www.regulations.gov website. Although listed in the index, some information is not publicly available, e.g., CBI or other information whose disclosure is restricted by statute. Certain other material, such as copyrighted materials, is not placed on the internet and will be publicly available only in hard copy form. Publicly available docket materials are available electronically through https://www.reglatons.gov . FOR FURTHER INFORMATION CONTACT: Dr. …
Other Federal Register documents from the same docket.
Citation: 88 FR 8226
