40 CFR - Protection of Environment

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There are 480 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.

  • 2014-04-17; vol. 79 # 74 - Thursday, April 17, 2014
    1. 79 FR 21631 - Approval and Promulgation of Implementation Plans; States of Arkansas and Louisiana; Clean Air Interstate Rule State Implementation Plan Revisions
      GPO FDSys XML | Text
      ENVIRONMENTAL PROTECTION AGENCY
      Direct final rule.
      This direct final rule is effective on June 16, 2014 without further notice, unless EPA receives relevant adverse comment by May 19, 2014. If EPA receives such comment, EPA will publish a timely withdrawal in the Federal Register informing the public that this rule will not take effect.
      40 CFR Part 52