---
kind: "section"
citation: "50 C.F.R. § 217.91"
title: "50"
number: "217.91"
heading: "Effective dates."
url: "https://uscodex.org/cfr/50/217.91"
---

# §217.91. Effective dates.


Regulations under this subpart are effective from August 1, 2026, through July 31, 2031.


## Notes

### Source

Source: 91 FR 45221, July 20, 2026, unless otherwise noted.

### Authority

Authority: 16 U.S.C. 1361 et seq., unless otherwise noted.

### Source

Source: 74 FR 35143, July 20, 2009, unless otherwise noted.