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Updates for April 23, 2026

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.

Regulations linked from the above-dated Federal Register:
  1. 5 CFR 2419
  2. 10 CFR 50, 54
  3. 40 CFR 52.1320, 52.2420, 81
Regulations inserted that were previously linked and became effective on the date listed above:
  1. 5 CFR 2421, 2422, 2426, 2429 Regulation at 91 FR 13941, Mar. 24, 2026
  2. 5 CFR Chapter XIV, App. B Regulation at 91 FR 13951, Mar. 24, 2026
  3. 27 CFR 9 Regulation at 91 FR 13969, Mar. 24, 2026
  4. 27 CFR 9 Regulation at 91 FR 13973, Mar. 24, 2026