CFR › Title 43 › Part 3135 › §3135.443 CFR §3135.4Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkA 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.