40 CFR Chapter I - ENVIRONMENTAL PROTECTION AGENCY

Status message

There are 446 Updates appearing in the Federal Register for Title 40. View below or at eCFR (GPOAccess)

Title 40 published on 2013-07-01

The following are only the Rules published in the Federal Register after the published date of Title 40.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2014-03-31; vol. 79 # 61 - Monday, March 31, 2014
    1. 79 FR 17869 - Approval and Promulgation of State Implementation Plans; Hawaii; Infrastructure Requirements for the 1997 8-Hour Ozone and the 1997 and 2006 Fine Particulate Matter National Ambient Air Quality Standards
      GPO FDSys XML | Text
      ENVIRONMENTAL PROTECTION AGENCY
      Final rule; clarification.
      This final rule is effective on March 31, 2014.
      40 CFR Part 52