This report presents the charge, activities, conclusions, and recommendations of the OSG and its two subgroups since the last NSTAC meeting in September 1998. In reviewing the functions of the NCC, the NCC Vision-Operations Subgroup considered revisions to electronic incident intrusion reporting criteria/process flow proposed by the NCC to guide NCC participants in reporting activities they identify as deviating from normal thresholds. The subgroup also assessed current participation in the NCC to see whether augmentation was needed for the NCC to fulfill its electronic indications, assessment, and warning (IAW) function. The subgroup agreed that broadening participation in the NCC would widen the scope of expertise and operational personnel available to fulfill the NCC's function and enable the NCC to grow as NS/EP telecommunications evolve. The subgroup developed, through consensus, a list of companies and Government departments and agencies for consideration by the National Communications System for participation in the NCC.