Eleven standards have been proposed for the Catalog of Standards (CoS) managed by the Smart Grid Interoperability Panel (SGIP).   SGIP was set up by NIST to drive a consensus-based standards recommendation process for the smart grid.  FERC has decided against mandating these standards for US electric power utilities, so these standards are recommended, not mandatory.

1. NIST IR 7628: Guidelines for Smart Grid Cyber Security
2. ANSI C12.1-2008: American National Standard for Electric Meters—Code for Electricity Metering
3. ANSI C12.18-2006/IEEE 1701-2011: Protocol Specification for ANSI Type 2 Optical Port/Optical Port Communication Protocol to Complement the Utility Industry End Device Data Tables
4. ANSI C12.19-2008: Utility Industry End Device Data Tables
5. ANSI C12.20-2010: American National Standard for Electricity Meters — 0.2 and 0.5 Accuracy Classes
6. ANSI C12.21-2006/IEEE 1702-2011: American National Standard Protocol Specification For Telephone Modem Communication/Telephone Modem Communication Protocol to Complement the Utility Industry End Device Data Tables
7. ANSI C12.22-2008: American National Standard for Protocol Specification for Interfacing to Data Communication Networks
8. IEC 60870-6-503: Telecontrol protocols compatible with ISO standards and ITU-T recommendations – TASE.2 Services and protocol
9. IEC 60870-6-702: Telecontrol protocols compatible with ISO standards and ITU-T recommendations – Functional profile for providing the TASE.2 application service in end systems
10. IEC 60870-6-802: Telecontrol equipment and systems – Part 6-802: Telecontrol protocols compatible with ISO standards and ITU-T recommendations – TASE.2 Object models
11. IEC/TR 61850-90-5: Communication networks and systems for power utility automation – Part 90-5: Use of IEC 61850 to transmit synchrophasor information according to IEEE C37.118