Within the context of the ISO/IEEE 11073 family of standards for device communication@ this standard establishes a normative definition of the communication between personal body composition analyzing devices and managers (e.g. cell phones@ personal computers@ personal health appliances@ set top boxes) in a manner that enables plug-and-play interoperability. It leverages appropriate portions of existing standards including ISO/IEEE 11073 terminology and IEEE Std 11073-20601?-20081 information models. It specifies the use of specific term codes@ formats@ and behaviors in telehealth environments restricting optionality in base frameworks in favor of interoperability. This standard defines a common core of communication functionality for personal telehealth body composition analyzer devices. In this context@ body composition analyzer devices are being used broadly to cover body composition analyzer devices that measure body impedances@ and compute the various body components including body fat from the impedance. Purpose This standard addresses a need for an openly defined@ independent standard for controlling information exchange to and from personal health devices and managers (e.g.@ cell phones@ personal computers@ personal health appliances@ set top boxes). Interoperability is key to growing the potential market for these devices and enabling people to be better informed participants in the management of their health. 1 Information on references can be found in Clause 2.