Environmental Protection Agency
The Environmental Protection Agency (EPA) is correcting a final rule published in the Federal Register on October 12, 2023, that became effective on November 13, 2023. The final rule updated the current ozone absorption cross-section to the recommended consensus- based value of 1.1329x10<SUP>-17</SUP> cm\2\ molecule<SUP>-1</SUP> or 304.39 atm<SUP>-1</SUP> cm<SUP>-1</SUP>. After publication, the EPA became aware of an error in the preamble text regarding the date for State, local, and Tribal monitoring agencies to complete implementation of the new ozone cross-section value, as well as a lack of clarity as to which entities the 2025 and 2026 implementation dates apply. With this action, the EPA is updating the final rule preamble and regulatory text to clarify the applicable implementation dates and the specific entities to which they apply. These corrections do not include any substantive changes to the final rule.
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 50 [EPA-HQ-OAR-2022-0007; FRL 9344.1-01-OAR] RIN 2060-AV63 AGENCY: Environmental Protection Agency (EPA). ACTION: Final rule; correction and correcting amendment. SUMMARY: The Environmental Protection Agency (EPA) is correcting a final rule published in the Federal Register on October 12, 2023, that became effective on November 13, 2023. The final rule updated the current ozone absorption cross-section to the recommended consensus-based value of 1.1329x10 −17 cm 2 molecule −1 or 304.39 atm −1 cm −1 . After publication, the EPA became aware of an error in the preamble text regarding the date for State, local, and Tribal monitoring agencies to complete implementation of the new ozone cross-section value, as well as a lack of clarity as to which entities the 2025 and 2026 implementation dates apply. With this action, the EPA is updating the final rule preamble and regulatory text to clarify the applicable implementation dates and the specific entities to which they apply. These corrections do not include any substantive changes to the final rule. DATES: This final rule is effective on January 16, 2025. ADDRESSES: The EPA has established a docket for the final rule under Docket ID No. EPA-HQ-OAR-2022-0007. 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 re…
Other Federal Register documents from the same docket.
Reference Measurement Principle and Calibration Procedure for the Measurement of Ozone in the Atmosphere (Chemiluminescence Method)
Reference Measurement Principle and Calibration Procedure for the Measurement of Ozone in the Atmosphere (Chemiluminescence Method)
Citation: 90 FR 4649
