The NERC Functional Model and NERC Functional Model Technical Document are historical documents that provided context and guidance to Standards Drafting Teams during Reliability Standards development. As of October 2019, these documents are no longer being actively maintained. The criteria by which a Bulk-Power System user, owner, or operator must register with NERC, and therefore be subject to applicable NERC Reliability Standards, are described in the Organization Registration and Certification Manual and the Compliance Registry Criteria in Appendices 5A and 5B, respectively, of the FERC-approved NERC Rules of Procedure.
