ABSTRACTBPK has a mandate to conduct performance audit for examining whether government agencies have implemented their critical programs in the possible aspects of efficiency, effectiveness or economy. Nevertheless, the current audit methods for those government programs designed at theplanning stages by the audit teams has not been fully emphasized on one or a combination of four main types of evaluation, such as process and/or implementation evaluation; outcome evaluation; impact evaluation; and cost-benefit and cost effectiveness analyses. They can be identified by using measures of program performance, along with other information, to study the benefits of a program or how to improve it. The program chosen is the NHS program, evaluated by using GAOs experience which were empirically implemented and observed by the author during the fellowship program in the Agency. This study discusses the evaluation of FOD evaluation and general guide to address researchable questions derived from NHS program stage evaluation, analysis of researchable question types, and to consider some challenges at designing evaluations. Further, BPK could improve methods and design of its performance audit plan as regards program evaluation by considering such variables that have been applied in their best practices.