---
kind: "section"
citation: "43 C.F.R. § 3809.331"
title: "43"
number: "3809.331"
heading: "Under what conditions must I modify my notice?"
url: "https://uscodex.org/cfr/43/3809.331"
---

# §3809.331. Under what conditions must I modify my notice?

- (a) You must modify your notice—
  - (1) If BLM requires you to do so to prevent unnecessary or undue degradation; or
  - (2) If you plan to make material changes to your operations. Material changes are changes that disturb areas not described in the existing notice; change your reclamation plan; or result in impacts of a different kind, degree, or extent than those described in the existing notice.
- (b) You must submit your notice modification 15 calendar days before making any material changes. If BLM determines your notice modification is complete before the 15-day period has elapsed, BLM may notify you to proceed. When BLM requires you to modify your notice, we may also notify you to proceed before the 15-day period has elapsed to prevent unnecessary or undue degradation.

## Notes

### Authority

Authority: 16 U.S.C. 1280; 30 U.S.C. 22; 30 U.S.C. 612; 43 U.S.C. 1201; and 43 U.S.C. 1732, 1733, 1740, 1781, and 1782.

### Source

Source: 65 FR 70112, Nov. 21, 2000, unless otherwise noted.

### Authority

Authority: 16 U.S.C. 3101 et seq.; 30 U.S.C. 22-42, 181 et seq., 301-306, 351-359, and 601 et seq.; 31 U.S.C. 9701; 40 U.S.C. 471 et seq.; 42 U.S.C. 6508; 43 U.S.C. 1701 et seq.; and Pub. L. No. 97-35, 95 Stat. 357.

### Source

Source: 45 FR 13974, Mar. 3, 1980, unless otherwise noted.