Event Reporting - EOP-004-4

Sep 20, 2026

Event Reporting EOP-004-4 establishes requirements to improve Bulk Electric System reliability by requiring Responsible Entities to report specified events. It defines an event reporting Operating Plan, including protocols for notifying the Electric Reliability Organization and other relevant organizations. It sets timing rules for submitting reports, outlines acceptable evidence such as completed attachment forms and submission confirmation records, and specifies compliance monitoring, enforcement authority, and evidence retention expectations. Violation Severity Levels are provided for R1 and R2 based on planning and reporting performance.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages14

Reading Time35 min

AccessFree to download

Introduction

Purpose and Applicability

Requirements and Measures

R1 and M1

R2 and M2

Compliance

Compliance Monitoring Process

Evidence Retention

Compliance Monitoring and Enforcement Program

Violation Severity Levels

A. Introduction 1. Title: Event Reporting 2. Number: EOP-004-4 3. Purpose: To improve the reliability of the Bulk Electric System by requiring the reporting of events by Responsible Entities. 4. Applicability: 4.1. Functional Entities: For the purpose of the Requirements and the EOP-004 Attachment 1 contained herein, the following Functional Entities will be collectively referred to as “Responsible Entity.” 4.1.1. Reliability Coordinator 4.1.2. Balancing Authority 4.1.3. Transmission Owner 4.1.4. Transmission Operator 4.1.5. Generator Owner 4.1.6. Generator Operator 4.1.7. Distribution Provider 5. Effective Date: See the Implementation Plan for EOP-004-4 . B. Requirements and Measures R1 . Each Responsible Entity shall have an event reporting Operating Plan in accordance with EOP-004-4 Attachment 1 that includes the protocol(s) for reporting to the Electric Reliability Organization and other organizations (e.g., the Regional Entity, company personnel, the Responsible Entity’s Reliability Coordinator, law enforcement, or governmental authority) . [Violation Risk Factor: Lower][Time Horizon: Operations Planning] M1 . Each Responsible Entity will have a dated event reporting Operating Plan that includes protocol(s) and each organization identified to receive an event report for event types specified in EOP-004-4 Attachment 1 and in accordance with the entity responsible for reporting. R2 . Each Responsible Entity shall report events specified in EOP-004-4 Attachment 1 to the entities specified per their event reporting Operating Plan by the later of 24 hours of recognition of meeting an event type threshold for reporting or by the end of the Responsible Entity’s next business day (4 p. m. local time will be considered the end of the business day) . [Violation Risk Factor: Medium][Time Horizon: Operations Assessment] M2 . Each Responsible Entity will have as evidence of reporting an event to the entities specified per their event reporting Operating Plan either a copy of the completed EOP-004-4 Attachment 2 form or a DOE-OE-417 form; and some evidence of submittal (e.g., operator log or other operating documentation, voice recording, electronic mail message, or confirmation of facsimile) demonstrating that the event report was submitted by the later of 24 hours of recognition of meeting an event type threshold for reporting or by the end of the Responsible Entity’s next business day (4 p. m. local time will be considered the end of the business day) . C. Compliance 1. Compliance Monitoring Process 1.1. Compliance Enforcement Authority: “Compliance Enforcement Authority” means NERC or the Regional Entity, or any entity as otherwise designated by an Applicable Governmental Authority, in their respective roles of monitoring and/or enforcing compliance with mandatory and enforceable Reliability Standards in their respective jurisdictions. 1.2. Evidence Retention: The Responsible Entity shall keep data or evidence to show compliance as identified below unless directed by its Compliance Enforcement Authority to retain specific evidence for a longer period of time as part of an investigation: The following evidence retention periods identify the period of time an entity is required to retain specific evidence to demonstrate compliance. For instances where the evidence retention period specified below is shorter than the time since the last audit, the Compliance Enforcement Authority may ask an entity to provide other evidence to show that it was compliant for the full time period since the last audit. • Each Responsible Entity shall retain the current Operating Plan plus each version issued since the last audit for Requirement R1, and Measure M1 . • Each Responsible Entity shall retain evidence of compliance since the last audit for Requirement R2 and Measure M2 . If a Responsible Entity is found non-compliant, it shall keep information related to the non-compliance until mitigation

FAQs

What is the purpose of EOP-004-4?

EOP-004-4 aims to improve the reliability of the Bulk Electric System by requiring Responsible Entities to report events.

What timing requirement applies to submitting event reports under R2?

Reports must be submitted by the later of 24 hours after recognition of meeting an event type threshold or by the end of the Responsible Entity’s next business day (4 p.m. local time).

What evidence must a Responsible Entity retain to demonstrate compliance?

For reporting, evidence can include a completed EOP-004-4 Attachment 2 form or a DOE-OE-417 form, plus proof of submission such as logs, documentation, voice recordings, email, or fax confirmations. Evidence retention periods are also specified for the Operating Plan and for R2/M2 compliance.

Sep 20, 2026

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