---
kind: "section"
citation: "21 C.F.R. § 12.37"
title: "21"
number: "12.37"
heading: "Effective date of a regulation."
url: "https://uscodex.org/cfr/21/12.37"
---

# §12.37. Effective date of a regulation.

- (a) If no objections are filed and no hearing is requested on a regulation under [§ 12.20(e)](/cfr/21/12.20.md?p=e), the regulation is effective on the date specified in the regulation as promulgated.
- (b) The Commissioner shall publish a confirmation of the effective date of the regulation. The Federal Register document confirming the effective date of the regulation may extend the time for compliance with the regulation.

## Notes

### Authority

Authority: 21 U.S.C. 141-149, 321-393, 467f, 679, 821, 1034; 42 U.S.C. 201, 262, 263b-263n, 264; 15 U.S.C. 1451-1461; 5 U.S.C. 551-558, 701-721; 28 U.S.C. 2112.

### Source

Source: 44 FR 22339, Apr. 13, 1979, unless otherwise noted.