43 CFR § 3137.85 - What is the effective date of a participating area?
---
identifier: "/us/cfr/t43/s3137.85"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "43 CFR § 3137.85 - What is the effective date of a participating area?"
title_number: 43
title_name: "Public Lands: Interior"
section_number: "3137.85"
section_name: "What is the effective date of a participating area?"
chapter_name: "BUREAU OF LAND MANAGEMENT, DEPARTMENT OF THE INTERIOR"
subchapter_number: "C"
subchapter_name: "MINERALS MANAGEMENT (3000)"
part_number: "3130"
part_name: "OIL AND GAS LEASING: NATIONAL PETROLEUM RESERVE, ALASKA"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 6508, 43 U.S.C. 1733 and 1740."
regulatory_source: "46 FR 55497, Nov. 9, 1981, unless otherwise noted."
cfr_part: "3130"
---
# 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.
[67 FR 17886, Apr. 11, 2002, as amended at 73 FR 6444, Feb. 4, 2008]