# Regional Reliability Standard PRC-006-NPCC-1- Automatic Underfrequency Load Shedding
> **Federal Energy Regulatory Commission** · Final rule. · Published 2013-02-27 · Effective 2013-04-29 · 78 FR 13213
## Document
- **Document number:** 2013-04430
- **Category:** electric-grid
- **Sub-agency:** Federal Energy Regulatory Commission
- **Federal Register citation:** 78 FR 13213
- **CFR reference:** 18 CFR 40
- **Publication date:** 2013-02-27
- **Effective date:** 2013-04-29
- **Energy docket:** Docket No. RM12-12-000
## Abstract

Under section 215 of the Federal Power Act (FPA), the Federal Energy Regulatory Commission (Commission) approves regional Reliability Standard PRC-006-NPCC-1 (Automatic Underfrequency Load Shedding), submitted to the Commission for approval by the North American Electric Reliability Corporation (NERC). Regional Reliability Standard PRC-006- NPCC-1 applies to generator owners, planning coordinators, distribution providers, and transmission owners in the Northeast Power Coordinating Council Region. Regional Reliability Standard PRC-006-NPCC-1 is designed to ensure the development of an effective automatic underfrequency load shedding (UFLS) program to preserve the security and integrity of the Bulk-Power System during declining system frequency events, in coordination with the NERC continent-wide UFLS Reliability Standard PRC-006-1. The Commission approves the related violation risk factors, violation severity levels, implementation plan, and effective dates proposed by NERC.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2013/02/27/2013-04430/regional-reliability-standard-prc-006-npcc-1--automatic-underfrequency-load-shedding)
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