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. The NERC Compliance Registry (NCR) lists all registered entities that are subject to compliance with approved NERC Reliability Standards. The current NCR Matrix is posted here.

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.


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.


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.

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.

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The NERC Organization Certification Process, detailed in Appendix 5A of the NERC Rules of Procedure, serves to ensure that the entity initially applying to be a Balancing Authority (BA), Reliability Coordinator (RC), or Transmission Operator (TOP) has the tools, processes, training, and procedures in place to operate reliably. Such an entity will demonstrate the ability to remain compliant with all of the NERC Reliability Standards applicable to the function(s) for which it wishes to perform by undergoing a Full Certification.

A Certification Review will be conducted when an already operating and certified RC, BA, or TOP makes certain changes. Examples of changes that usually constitute the need for a Certification Review include:

  • Changes to a Registered Entity’s Footprint or operational challenges caused by the footprint change
  • Organization restructuring that could impact the BPS reliability
  • Relocation of the control center
  • Changes to Registered Entity ownership requiring major operating procedure changes
  • Significant changes to JRO/CFR assignments or changes to the agreements themselves
  • Addition or removal of member JRO/CFR utilities or entities
  • Complete replacement of SCADA/EMS system

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

If you have any questions concerning registration or certification, please contact Abby Fellinger at 512-583-4927 or send an email to Texas RE Registration.