OMB control number

FERC-725X, Mandatory Reliability Standards: Voltage and Reactive (VAR) Standards

OMB 1902-0278 · FERC.

OMB 1902-0278

NERC established the Voltage and Reactive (“VAR”) group of Reliability Standards, which consists of two continent-wide Reliability Standards, VAR-001-4.2 and VAR-002-4.1. These two standards were designed to maintain voltage stability on the Bulk-Power System, protect transmission, generation, distribution, and customer equipment, and support the reliable operation of the Bulk-Power System. Voltage stability is the ability of a power system to maintain acceptable voltage levels throughout the system under normal operating conditions and following a disturbance. Failure to maintain acceptable voltage levels (i.e., voltage levels become too high or too low) may cause violations of System Operating Limits (“SOLs”) and Interconnection Reliability Operating Limits (“IROLs”), resulting in damage to Bulk-Power System equipment, and thereby threaten the reliable operation of the Bulk-Power System.

The latest form for FERC-725X, Mandatory Reliability Standards: Voltage and Reactive (VAR) Standards expires 2027-12-31 and is listed under ICR 202410-1902-002.

View the official OMB control history on Reginfo.gov.

Latest Forms, Documents, and Supporting Material

Latest forms, documents, and information collections
DocumentType
FERC-725X supporting statement 10.23.24.docxSupporting Statement A
FERC-725X supporting statement 10.23.24.docxSupporting Statement A
16 USC 824(o).pdfSupplementary Document
16 USC 824(o).pdf Supplementary Document
18 CFR 40.pdfSupplementary Document
FERC-725X 30 day notice-10.23.24 (Issued).docxSupplementary Document
FERC-725X 60 day notice (Issued).docxSupplementary Document
FERC-725X 30-day notice (Published).pdfSupplementary Document
FERC-725X 60-day notice (Published).pdfSupplementary Document
VAR-001-5.pdfSupplementary Document
Reliability Standard VAR-002-4.1.pdfSupplementary Document
VAR-002-4.1 Reliability Standard Information collection
VAR-001-5 Reliability Standard Information collection

All Historical Document Collections

OMB Details

VAR-001-5 Reliability Standard

Federal Enterprise Architecture: Energy - Energy Conservation and Preparedness