overhaul. OPNAVINST 4730.5 requires an INSURV inspection for active ships at least once every 3 years. TYPE COMMANDERS’ ADMINISTRATIVE INSPECTIONS Type  commanders’  administrative  inspections  are held at least once each training cycle and are divided into a whole ship category and a department category. Administrative  methods  and  procedures  are  examined to see if they are intelligent and efficient. They are also checked  to  see  if  they  are  directed  toward  keeping  the ship prepared for wartime mission performance. MATERIAL  READINESS  INSPECTION The purpose of these inspections is to determine the material  readiness  of  shipboard  equipment  and  systems installations.  These  inspections  are  conducted  once during each ship’s training cycle and are supervised by an officer who is qualified in the particular equipment or  system.  When  practical,  this  officer  will  be  assisted by  an  engineer  finished  by  the  systems  command responsible  for  that  equipment.  In  the  interest  of reducing  costs  and  conserving  manpower,  these inspections  are  normally  conducted  concurrenty  with, or as part of, the INSURV inspection. The material readiness inspection consists of three specific  types  of  inspections:  performance  inspections, physical  inspections,  and  maintenance  administration inspections. The performance inspection includes, but is not limited  to,  the  following  actions: 1. Making the basic measurements listed on the MRC  for  the  equipment  and  systems  designated by  the  inspecting  officer  as  essential  to  the primary  mission  and  task  of  the  ship  being inspected. 2.  Conducting  system  tests  on  designated  systems at a test and calibration facility. If any of these tests are not done at the time or just prior to the inspection,   they   should   be   done   shortly afterwards.  In  any  event,  additional measurements,  as  noted  on  system  MRCs, should be taken at the time of the system test. 3.  Conducting  interference  tests  to  determine  if operating  the  equipment  causes  problems  with other installed electronic equipment or if it is hampered  by  interference  from  other  electronic or nonelectronic equipment. tests  also  identify  the  source The   interference and  amplitude  of 4. interference   emanating   from   nonelectronic equipment. Listing  all  approved  modifications  required  but not   made,   as   well   as   all   unauthorized modifications. The  physical  inspection  includes  visually  inspecting and  determining  the  condition  and  adequacy  of  all equipment, cabling, repair parts, and tools. The   maintenance   administration   inspection determines  if  there  is  an  established  Procedure  for submitting  SCLSIS  and  OPNAV  4790/2  and  4790/CK forms. Checks are also made to ensure that there is a procedure for listing field changes on field change plates and updating electronics publications. This  inspection  includes,  but  is  not  limited  to, checking whether the quantity and rates of electronics personnel  on  board  meet  the  ship’s  allowance  and whether  the  electronics  personnel  assigned  to  the  ship are capable of supporting the allowed equipment. It also is used to see if there is an established program for on-the-job  training  (OJT)  as  well  as  a  program  for sending   personnel   to   fleet   and   NMPC-controlled electronics   schools. TEMPEST INSPECTIONS Compromising emanations, generally referred to as TEMPEST,   are   unintentional   data-related   or intelligence-bearing   signals.   These   signals,   if intercepted  or  analyzed,  can  disclose  the  classified information   transmitted,   received,   handled,   or otherwise   processed   by   electrical   information processing   equipment   or   systems.   Any   electrical information processing device, whether an ordinary electric typewriter or a large complex data processor, may emit signals that can be intercepted and used to compromise   security.   The   Navy   holds   TEMPEST inspections  to  measure  these  emanations  and  determine how they can be eliminated. There are two types of TEMPEST inspections. One is  the  instrumented  TEMPEST  survey,  an  on-site  (field) test to determine the nature and amplitude of conducted or  radiated  signals  that  may  contain  compromising (classified)  information.  A  field  test  normally  includes detection  and  measurement  of  these  signals,  and analysis  to  determine  correlation  between  emanating signals and classified information being processed. A National Policy Certification is issued to the ship when the  ship’s  equipment  has  been  found  to  meet  the requirements of the national policy. This permits the 2-19