---
kind: "section"
citation: "43 C.F.R. § 3137.85"
title: "43"
number: "3137.85"
heading: "What is the effective date of a participating area?"
url: "https://uscodex.org/cfr/43/3137.85"
---

# §3137.85. What is the effective date of a participating area?

- (a) The effective date of an initial participating area is the first day of the month in which you complete a well meeting the productivity criteria, but no earlier than the effective date of the unit.
- (b) The effective date of a modified participating area or modified allocation schedule is the earlier of the first day of the month in which you file the proposal for a modification or such other effective date as may be provided for in the unit agreement and approved by the BLM, but no earlier than the effective date of the unit.

## Notes

### Amendments

[67 FR 17886, Apr. 11, 2002, as amended at 73 FR 6444, Feb. 4, 2008]

### Source

Source: 67 FR 17886, Apr. 11, 2002, unless otherwise noted.

### Authority

Authority: 42 U.S.C. 6508, 43 U.S.C. 1733 and 1740.

### Source

Source: 46 FR 55497, Nov. 9, 1981, unless otherwise noted.

### Amendments

[67 FR 17886, Apr. 11, 2002, as amended at 73 FR 6444, Feb. 4, 2008]