CFR > Title 18 > Chapter I > Subchapter A > Part 2 > Non-Mandatory Guidance on Smart Grid Standards CFR > Title 18 > Chapter I > Subchapter A > Part 2 > Non-Mandatory Guidance on Smart Grid Standards Current as of: 2024 | Check for updates | Other versions § 2.27 Availability of North American Energy Standards Board (NAESB) Smart Grid Standards as non-mandatory guidance