Per recently issued Executive Orders, both the LDAR and CO2 rules have been withdrawn from publication at the Federal Register.
https://www.whitehouse.gov/presidential-actions/2025/01/regulatory-freeze-pending-review/
As requested by WinDOT subscribers, ViaData has researched the proposed LDAR and CO2 rules which were withdrawn before they were published in the Federal Register.
Click here to view the unofficial CO2 version released by PHMSA before it was to be published.
Click here to view the unofficial LDAR version released by PHMSA before it was to be published.
Please note the PHMSA announcements at the top of page for both proposed rules.
CO2
"PHMSA issued this Notice of Proposed Rulemaking on January 10, 2025, and it has been submitted to the Office of the Federal Register for publication. Although PHMSA has taken steps to ensure the accuracy of this version of the Notice of Proposed Rulemaking posted on the PHMSA website, and will post it in the docket (PHMSA-2022-0125) on the Regulations.gov website (www.regulations.gov), it is not the official version. Please refer to the official version in a forthcoming Federal Register publication, which will appear on the websites of each of the Federal Register (www.federalregister.gov) and the Government Printing Office (www.govinfo.gov). After publication in the Federal Register, this unofficial version will be removed from PHMSA’s website and replaced with a link to the official version. PHMSA will also post the official version in the docket."
LDAR
PHMSA issued this Final Rule on January 17, 2025, and it has been submitted to the Office of the Federal Register for publication. Although PHMSA has taken steps to ensure the accuracy of this version of the Final Rule posted on the PHMSA website, and will post it in the docket (PHMSA-2021-0039) on the Regulations.gov website (www.regulations.gov), it is not the official version. Please refer to the official version in a forthcoming Federal Register publication, which will appear on the websites of each of the Federal Register (www.federalregister.gov) and the Government Publishing Office (www.govinfo.gov). After publication in the Federal Register, this unofficial version will be removed from PHMSA’s website and replaced with a link to the official version. PHMSA will also post the official version in the docket.