40 CFR Chapter I, Subchapter C - AIR PROGRAMS

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There are 602 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.

  • 2014-06-27; vol. 79 # 124 - Friday, June 27, 2014
    1. 79 FR 36419 - Partial Approval and Partial Disapproval and Promulgation of Air Quality Implementation Plans; South Dakota; Revisions to South Dakota Administrative Code; Permit: New and Modified Sources
      GPO FDSys XML | Text
      Final rule.
      This final rule is effective July 28, 2014.
      40 CFR Part 52