CFR › Title 36 › Part 291 › §291.1836 CFR §291.18Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkThe Authorized Officer may modify a permit, consistent with applicable laws and policies, when:(a)The Authorized Officer determines that there are management, administrative, or safety reasons to modify a permit; or(b)A permittee requests a modification in writing.