This specification covers end product inspection and test of high frequency (microwave) printed boards for microstrip@ stripline@ mixed dielectric and multilayer stripline applications with or without buried/blind vias@ and metal cores. The printed board may contain embedded active or passive circuitry with distributive capacitive planes@ capacitive or resistive components conforming to IPC-6017. The printed board may contain build up High Density Interconnect (HDI) layers conforming to IPC-6016. Purpose The purpose of this specification is to provide requirements for qualification and performance of high frequency (Microwave) printed boards.