North American Electric Reliability Corporation

FAC-011-4

System Operating Limits Methodology for the Operations Horizon

Latest Edition2024-04-01

Country ScopeNorth America

CategoryReliability Standards / Facilities Design, Connections, and Maintenance

Record Typestandard

ApplicabilityEnforceable after approval or adoption by the applicable regulatory authority

Applicability Summary

NERC reliability standard in the FAC family addressing system operating limits methodology for the operations horizon .

NERC page label: Mandatory Subject to Enforcement. Standard document modified December 9, 2025. Public notes: Filing/Order Docket No. RD22-2-000.