Site Feedback

Recent Changes

Updates for May 24, 2023

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. 21 CFR 101
Regulations linked from the above-dated Federal Register:
  1. 10 CFR 430
Regulations inserted that were previously linked and became effective on the date listed above:
  1. 16 CFR 1112, 1261 87 FR 72659, Nov. 25, 2022
  2. 40 CFR 52 88 FR 24692, Apr. 24, 2023
  3. 40 CFR 52 88 FR 24698, Apr. 24, 2023
  4. 49 CFR 192 87 FR 52267, Aug. 24, 2022
  5. 49 CFR 192 87 FR 64384, Oct. 25, 2022
  6. 49 CFR 192 88 FR 24711, Apr. 24, 2023