American National Standard for Electricity Meters 0.2 and 0.5 Accuracy Class
standard by American National Standards Institute, 08/31/2010

American National Standard for Electricity Meters – 0.1, 0.2, and 0.5 Accuracy Classes
standard by American National Standards Institute, 04/01/2017

Protocol Specification for Telephone Modem Communication
standard by American National Standards Institute, 05/02/2006

American National Standard for Protocol Specification for Interfacing to Data Communication Networks
standard by American National Standards Institute, 03/03/2009

American National Standard for Protocol Specification for Interfacing to Data Communication Networks
standard by American National Standards Institute, 04/14/2015

American National Standard for Registers, Mechanical Demand
standard by American National Standards Institute, 05/01/1984

American National Standard for Thermal Demand Meters
standard by American National Standards Institute, 01/01/1978

American National Standard for Phase-Shifting Devices Used In Metering, Marking and Arrangement of Terminals
standard by American National Standards Institute, 05/01/1987

American National Standard Requirements for Watthour Meter Sockets
standard by American National Standards Institute, 04/15/2005