18 CFR § 12.11 - Reporting modifications of the project or project works.

---
identifier: "/us/cfr/t18/s12.11"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "18 CFR § 12.11 - Reporting modifications of the project or project works."
title_number: 18
title_name: "Conservation of Power and Water Resources"
section_number: "12.11"
section_name: "Reporting modifications of the project or project works."
chapter_name: "FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY"
subchapter_number: "B"
subchapter_name: "REGULATIONS UNDER THE FEDERAL POWER ACT"
part_number: "12"
part_name: "SAFETY OF WATER POWER PROJECTS AND PROJECT WORKS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "16 U.S.C. 791a-825r; 42 U.S.C. 7101-7352."
regulatory_source: "Order 122, 46 FR 9036, Jan. 28, 1981, unless otherwise noted."
cfr_part: "12"
---


# 12.11 Reporting modifications of the project or project works.

(a) *Reporting requirement.* Regardless of whether a particular modification is permitted without specific prior Commission approval, an applicant or licensee must report any modification of the project or project works to the Regional Engineer in writing, verified in accordance with § 12.13, at the time specified in paragraph (b) of this section.

(b) *Time of reporting.* (1) Any modification that is an emergency measure taken in response to a condition affecting the safety of the project or project works must be submitted with the report of that condition required by § 12.10(a)(2).

(2) In all other instances, the modification must be reported at least 60 days before work on the modification begins.