# Regional Reliability Standard PRC-006-SERC-01; Automatic Underfrequency Load Shedding Requirements
> **Federal Energy Regulatory Commission** · Final rule. · Published 2012-12-26 · Effective 2013-02-25 · 77 FR 75838
## Document
- **Document number:** 2012-31034
- **Category:** electric-grid
- **Sub-agency:** Federal Energy Regulatory Commission
- **Federal Register citation:** 77 FR 75838
- **CFR reference:** 18 CFR 40
- **Publication date:** 2012-12-26
- **Effective date:** 2013-02-25
- **Energy docket:** Docket No. RM12-9-000
## Abstract

Under section 215 of the Federal Power Act, the Federal Energy Regulatory Commission (Commission) approves regional Reliability Standard PRC-006-SERC-01 (Automatic Underfrequency Load Shedding Requirements), submitted to the Commission for approval by the North American Electric Reliability Corporation (NERC). Regional Reliability Standard PRC-006-SERC-01 is designed to ensure that automatic underfrequency load shedding protection schemes, designed by planning coordinators and implemented by applicable distribution providers and transmission owners in the SERC Reliability Corporation Region, are coordinated to mitigate the consequences of an underfrequency event effectively. The Commission approves the related violation risk factors, with one modification, violation severity levels, implementation plan, and effective date proposed by NERC.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/12/26/2012-31034/regional-reliability-standard-prc-006-serc-01-automatic-underfrequency-load-shedding-requirements)
---
*AI Analytics · CC0 1.0*