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Updates for December 19, 2025

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. 12 CFR 201, 204, 327
  2. 14 CFR 120, 142, 413
  3. 21 CFR 882
  4. 26 CFR 58
  5. 40 CFR 180
Regulations linked from the above-dated Federal Register:
  1. 37 CFR 201, 202
  2. 45 CFR 1302
  3. 47 CFR 73
Regulations inserted that were previously linked and became effective on the date listed above:
  1. 40 CFR 52.120 90 FR 51999, Nov. 19, 2025
  2. 40 CFR 52.2320 90 FR 52001, Nov. 19, 2025
  3. 40 CFR 81 90 FR 52002, Nov. 19, 2025