50 CFR § 221.20 - What supporting information must NOAA provide with its preliminary conditions or prescriptions?

---
identifier: "/us/cfr/t50/s221.20"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "50 CFR § 221.20 - What supporting information must NOAA provide with its preliminary conditions or prescriptions?"
title_number: 50
title_name: "Wildlife and Fisheries"
section_number: "221.20"
section_name: "What supporting information must NOAA provide with its preliminary conditions or prescriptions?"
chapter_name: "NATIONAL MARINE FISHERIES SERVICE, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE"
subchapter_number: "C"
subchapter_name: "MARINE MAMMALS"
part_number: "221"
part_name: "CONDITIONS AND PRESCRIPTIONS IN FERC HYDROPOWER LICENSES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "16 U.S.C. 797(e), 811, 823d."
regulatory_source: "80 FR 17207, Mar. 31, 2015, unless otherwise noted."
cfr_part: "221"
---


# 221.20 What supporting information must NOAA provide with its preliminary conditions or prescriptions?

(a) *Supporting information.* (1) When NOAA files a preliminary condition or prescription with FERC, it must include a rationale for the condition or prescription and an index to NOAA's administrative record that identifies all documents relied upon.

(2) If any of the documents relied upon are not already in the license proceeding record, NOAA must:

(i) File them with FERC at the time it files the preliminary condition or prescription;

(ii) Provide copies to the license applicant; and

(b) *Service.* NOAA will serve a copy of its preliminary condition or prescription on each license party.