43 CFR § 3135.4
When is a suspension of operations and production effective?
June 11, 2020
A suspension of operations and production is effective—
(a) The first day of the month in which you file the application for suspension or BLM requires the suspension; or
(b) Any other date BLM specifies in the decision document.
[67 FR 17886, Apr. 11, 2002]