18 CFR § 40.2 - Mandatory Reliability Standards.

---
identifier: "/us/cfr/t18/s40.2"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "18 CFR § 40.2 - Mandatory Reliability Standards."
title_number: 18
title_name: "Conservation of Power and Water Resources"
section_number: "40.2"
section_name: "Mandatory Reliability Standards."
chapter_name: "FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY"
subchapter_number: "B"
subchapter_name: "REGULATIONS UNDER THE FEDERAL POWER ACT"
part_number: "40"
part_name: "MANDATORY RELIABILITY STANDARDS FOR THE BULK-POWER SYSTEM"
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. 824o."
regulatory_source: "Order 693, 72 FR 16598, Apr. 4, 2007, unless otherwise noted."
cfr_part: "40"
---


# 40.2 Mandatory Reliability Standards.

(a) Each applicable user, owner or operator of the Bulk-Power System must comply with Commission-approved Reliability Standards developed by the Electric Reliability Organization.

(b) A proposed modification to a Reliability Standard proposed to become effective pursuant to § 39.5 of this Chapter will not be effective until approved by the Commission.