This standard applies to both wireless communications devices (WDs) and hearing aids...
ANSI C63.19-2011 history
2019ANSI C63.19-2019 American National Standard Methods of Measurement of Compatibility between Wireless Communications Devices and Hearing Aids - Redline
2011ANSI C63.19-2011 Methods of Measurement of Compatibility between Wireless Communications Devices and Hearing Aids
2007ANSI C63.19-2007 American National Standard Methods of Measurement for Hearing Aid Compatibility with Wireless Communications
2006ANSI C63.19-2006 Standard Methods of Measurement of Compatibility between Wireless Communications Devices and Hearing Aids
2001ANSI C63.19-2001 American National Standard for Methods of Measurement of Capability between Wireless Communication Devices and Hearing Aids