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Recent Changes

Updates for September 25 - 27, 2021

The Office of the Federal Register updates the material in the eCFR on a daily basis. While we do not make updates in real-time, generally the eCFR is current within two business days.

You can learn more about how the eCFR is updated here.

Reader Aids

Reader Aids help people use and understand the eCFR. Reader Aids information is not published in the Code of Federal Regulations.

Effective regulations inserted from the above-dated Federal Register:
  1. 31 CFF 33
  2. 33 CFR 117
  3. 39 CFR 111, 113, 211
  4. 49 CFR 371
  5. 50 CFR 679
Regulations linked from the above-dated Federal Register:
  1. 39 CFR 233
  2. 40 CFR 52
  3. 42 CFR 84
  4. 45 CFR 147, 155, 156
Regulations inserted that were previously linked and became effective on the date listed above:
  1. 10 CFR 431 (86 FR 40774, July 29, 2021)
  2. 41 CFR 201-1 (86 FR 47587, Aug. 26, 2021)
  3. 50 CFR 91 (86 FR 47596, Aug. 26, 2021)
  4. 50 CFR 679 (86 FR 16546, Mar. 30, 2021)