This recommended practice describes electroencephalography (EEG) biofeedback (neurofeedback) systems and software to optimize the quality and availability of information available to device users. This recommended practice describes the minimum standards sufficient to verify that conforming EEG biofeedback systems provide quality biofeedback results and information that is clear. New IEEE Standard - Superseded. A detailed set of documentation requirements is proposed. The detailed requirements for the documentation of neurofeedback instruments and software to provide quality and availability of information to users are specified.