All bulk power system (BPS) owners, operators, or users in the ERCOT region are required to register with NERC and comply with mandatory reliability standards based on the functions for which they are registered. The NERC registration process is included in Section 500 of the NERC Rules of Procedure. This process ensures that no areas lack entities to perform the duties and tasks required by the NERC Reliability Standards, and that coverage is not duplicated.

To determine the function(s) for which an entity is qualified and should be registered, please refer to the NERC website and the Appendix 5B Statement of Compliance Registry Criteria, which is found on the NERC Rules of Procedure page.

Submit requests for new or revised NERC registration to Texas RE through the Centralized Organization Registration ERO System (CORES) tool. Texas RE Registration staff will review each request and respond accordingly. If an entity has any questions or comments regarding the placement of an entity on the NERC Compliance Registry, please submit requests to Texas RE Registration.

Once an entity receives its letter of registration from NERC, the entity will need to establish access for Open Access Technology International, Inc. (OATI) webCDMS (Compliance Data Management System). Registered entities are responsible for maintaining and updating all contact information in webCDMS.


Function Mapping for Entities
GO-GOP Asset Template

The Centralized Organization Registration ERO System (CORES) was launched on July 15, 2019, to provide consistency and alignment across the ERO for registration activities. The CORES platform enables entities to manage their registration information, contact information, and functional relationships from one application.

All entities seeking to submit a new registration or change request to Texas RE will need to register for an ERO Portal account to access CORES. Entities are also required to complete the steps for Multi-Factor Authentication that automatically appear when attempting to log into the ERO Portal for the first time.

Prior to submitting an application in the CORES tool, please contact Abby Fellinger at 512-583-4927 or Texas RE Registration to discuss all new registration requests or upcoming registration changes.

Current CORES Updates.


CORES Access Rights
Submitting New Registration Request in CORES
CORES Application Worksheet
CORES Validation Worksheet
CORES Technology Project
CORES Video Library
ERO Portal End User Guide
Multi-Factor Authentication End User Guide
NERC Multi-Factor Authentication Quick Start Guide

An entity registering with NERC is responsible for its own compliance with NERC Reliability Standards. Although it may delegate certain tasks, it may not delegate its responsibility. A Generation Operator (GOP), Generation Owner (GO), Transmission Operator (TOP), Transmission Owner (TO), or Distribution Provider (DP) may apply with Texas RE to become part of a Joint Registration Organization (JRO) or Coordinated Functional Registration (CFR) agreement.

  • An entity executing a JRO takes responsibility for one or more functions on behalf of its members or related entities. Typical examples of organizations that should consider a JRO are the joint action agency or the generation-and-transmission cooperative.
  • Parties to a CFR divide their compliance responsibilities for NERC Standard(s) and/or requirements related to a particular function.

Texas RE will review the JRO or CFR application and may request additional information. Approved JROs and CFRs are registered with NERC and listed on NERC’s Compliance Registry page.

Each year, the JRO and CFR points of contact must provide Texas RE with any changes to the JRO or CFR document. Please see the NERC Rules of Procedure, Section 500, specifically sections 507 and 508.

In the event of a violation of a NERC Reliability Standard or of a requirement/sub-requirement for which any entity of a CFR is registered, that entity shall be identified in the notice of alleged violation and will be assessed the sanction or penalty in accordance with the NERC Sanctions Guidelines.

For questions about JROs/CFRs or other registration-related issues, please contact Texas RE Registration.

Related Links

CFR Portal Login
CFR Portal Registered Entity User Guide

Any entity that is or will be operating on the BPS in the ERCOT region as a Balancing Authority (BA), Reliability Coordinator (RC), or Transmission Operator (TOP) is required to be certified per the processes outlined in the NERC Rules of Procedure, Section 500 and Appendix 5A Organization Registration and Certification Manual, found on the NERC Rules of Procedure page. This process ensures that an entity has the tools, processes, training, and procedures to demonstrate their ability to meet the NERC Standards and requirements applicable to the function(s) for which it is applying, thereby demonstrating the ability to become certified and then operational.

To initiate the Texas RE certification process, the applicant will complete the New Entity Certification Application and send to Texas RE Registration. Upon receipt, Texas RE reviews the application, and if it is accepted, will establish a timeline, including deadlines, with the organization.

Once an entity successfully completes the required certification process based on its operating status, the entity is deemed NERC-certified. The entity must commence operation within 12 months of certification.

If you have any questions concerning registration or certification, please contact Texas RE Registration.

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