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Electronic Code of Federal Regulations

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UPDATED APRIL 27-29, 2019

Click Here for List of Recent Update Pages

Effective regulations inserted from the above-dated Federal Register:

6 CFR 5

31 CFR 579

Regulations linked from the above-dated Federal Register:

5 CFR 550

Regulations delayed or withdrawn in the above-dated Federal Register:


Regulations inserted that were previously linked and became effective on the date listed above:

40 CFR 52.377 (84 FR 11885, March 29, 2019)

40 CFR 52.920 (84 FR 11653, March 28, 2019)

40 CFR 52.1120 (84 FR 11887, March 29, 2019)

40 CFR 52.1820 (84 FR 11651, March 28, 2019)

Effective dates that expire on this date:


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