18 CFR § 343.1 - Definitions.

---
identifier: "/us/cfr/t18/s343.1"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "18 CFR § 343.1 - Definitions."
title_number: 18
title_name: "Conservation of Power and Water Resources"
section_number: "343.1"
section_name: "Definitions."
chapter_name: "FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY"
subchapter_number: "P"
subchapter_name: "REGULATIONS UNDER THE INTERSTATE COMMERCE ACT"
part_number: "343"
part_name: "PROCEDURAL RULES APPLICABLE TO OIL PIPELINE PROCEEDINGS"
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. 571-583; 42 U.S.C. 7101-7352; 49 U.S.C. 60502; 49 App. U.S.C. 1-85."
regulatory_source: "Order 561, 58 FR 58780, Nov. 4, 1993, unless otherwise noted."
cfr_part: "343"
---


# 343.1 Definitions.

For purposes of this part, the following definitions apply:

(a) *Complaint* means a filing challenging an existing rate or practice under section 13(1) of the Interstate Commerce Act.

(b) *Protest* means a filing, under section 15(7) of the Interstate Commerce Act, challenging a tariff publication.

[Order 561, 58 FR 58780, Nov. 4, 1993, as amended by Order 578, 60 FR 19505, Apr. 19, 1995]