Site Feedback

Recent Changes

Updates for March 19, 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. 21 CFR 510, 520, 522, 524, 529, 556, 558
  2. 40 CFR 81
  3. 47 CFR 73
  4. 50 CFR 679
Regulations linked from the above-dated Federal Register:
  1. 40 CFR 52, 131, 147
  2. 47 CFR 1
Regulations delayed, withdrawn, or extended in the above-dated Federal Register:
  1. 10 CFR 1061 Regulation at 86 FR 456, Jan. 6, 2021 delayed to June 17, 2021
Regulations inserted that were previously linked and became effective on the date listed above:
  1. 40 CFR 228 (86 FR 9879, Feb. 17, 2021)