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Electronic Code of Federal Regulations

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UPDATED MAY 12, 2021

Click Here for List of Recent Update Pages

Effective regulations inserted from the above-dated Federal Register:

40 CFR 180

Regulations linked from the above-dated Federal Register:

40 CFR 52

Regulations delayed, withdrawn, or extended in the above-dated Federal Register:


Effective dates that expire on this date:


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

17 CFR 37 (86 FR 9247, Feb. 11, 2021)

33 CFR 165 (86 FR 18897, Apr. 12, 2021)

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