18 CFR § 385.401 - Applicability (Rule 401).

---
identifier: "/us/cfr/t18/s385.401"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "18 CFR § 385.401 - Applicability (Rule 401)."
title_number: 18
title_name: "Conservation of Power and Water Resources"
section_number: "385.401"
section_name: "Applicability (Rule 401)."
chapter_name: "FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY"
subchapter_number: "X"
subchapter_name: "PROCEDURAL RULES"
part_number: "385"
part_name: "RULES OF PRACTICE AND PROCEDURE"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "5 U.S.C. 551-557; 15 U.S.C. 717-717w, 3301-3432; 16 U.S.C. 791a-825v, 2601-2645; 28 U.S.C. 2461; 31 U.S.C 3701, 9701; 42 U.S.C. 7101-7352, 16441, 16451-16463; 49 U.S.C. 60502; 49 App. U.S.C. 1-85 (1988); 28 U.S.C. 2461 note (1990); 28 U.S.C. 2461 note (2015)."
regulatory_source: "Order 225, 47 FR 19022, May 3, 1982, unless otherwise noted."
cfr_part: "385"
---


# 385.401 Applicability (Rule 401).

(a) *General rule.* Except as provided in paragraph (b) of this section, this subpart applies to discovery in proceedings set for hearing under subpart E of this part, and to such other proceedings as the Commission may order.

(b) *Exceptions.* Unless otherwise ordered by the Commission, this subpart does not apply to:

(1) Requests for information under the Freedom of Information Act, 5 U.S.C. 552, governed by Part 388 of this chapter; or,

(2) Requests by the Commission or its staff who are not participants in a proceeding set for hearing under subpart E of this part to obtain information, reports, or data from persons subject to the Commission's regulatory jurisdiction; or

(3) Investigations conducted pursuant to Part 1b of this chapter.