Site Feedback

Recent Changes

Updates for November 27, 2012

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. 40 CFR 52
Regulations linked from the above-dated Federal Register:
  1. 40 CFR 52
  2. 48 CFR 1832, 1852
  3. 49 CFR 578