prepares  and  submits  financial  reports  and  maintains various  files.  This  includes  the  manual  and  mechanized output  files.  Stock  control  personnel  encode  input documents  and  check  codes  inserted  by  other  personnel in  the  supply  department.  Stock  control  also  prepares requests for reports and listings and interprets computer output  data.  It  is  clear  that  the  accuracy  and completeness of the computer product will be no better than the accuracy and completeness of the stock control personnel’s  efforts. FUNCTIONS Stock control personnel act to facilitate paperwork flow  while  accommodating  computer  requirements within  SUADPS  constraints  to  perform  the  supply functions described in the following paragraphs. Files Stock control maintains mechanized and manual files. Refer to the SUADPS-RT Support Procedures for lists  of  mechanized  files.  The  following  paragraphs describe some of the manual files maintained by stock control. The Stock Control History File contains a copy of transaction   documents,   such   as   issues,   offship requisitions,  change  notices,  and  receipts.  The  material completed   file   contains   the   copy   of   completed procurement documents submitted by ship departments. The  receipt  file  contains  a  copy  of  all  signed  shipping documents  used  to  process  the  receipt  transaction. The  data  processing  history  file  consists  of  all computer-generated  listings  or  documents  used  for updating  the  records. Stock  control  also  maintains  copies  of  reports generated  by  the  computer  system.  Stock  control  uses these  reports  when  conducting  an  audit  trail  for  a specific item or document number. Updates An   update   is   the   processing   of   collected transactions or information into the computer system. The  process  includes  inputting  information  to  the system tape files, which allows the system to produce a report or printout. Stock control manages the update by specifying  what  input  documents  should  be  processed first. Stock control does this by submitting a request for update  to  the  systems  coordinator,  together  with requests for specific reports and other output. Computer systems  with  real-time  capability  update  records automatically when customers enter transactions in the computer. Stock records are normally updated monthly based on change notice management information provided by SPCC. A complete reconciliation of stock record data should  be  accomplished  with  SPCC  once  a  year.  Each fiscal year, a unit price change tape will be received from SPCC to update the unit price information in the stock records. The unit price change tape normally has an effective  date  of  1  October. Procurements Stock control is responsible for buying material for the  ship  and  embarked  squadrons.  This  includes submitting  requisitions  for  stock,  as  well  as  DTO requisitions for embarked aviation squadrons and ship’s departments. Stock  replenishment  policy  afloat  includes  the computation of demand quantity during the past 6-,9-, or  12-month  period.  Use  the  endurance  table  in paragraph  6230  of  NAVSUP  P-485  to  adjust  the  high limit,  low  limit,  and  safety  level.  When  using  the endurance  table,  determine  the  proper  order  and shipping time (O&ST) before selecting the high/low limit  for  SIM  items.  The  authorized  O&ST  are  as follows: .  0  (zero)  days  for  deployed  and  nondeployed ships when items are readily available in SERVMART or  tending  ship  throughout  the  following  quarter. .  30  days  for  nondeployed  ships  in  the  United States, excluding Alaska and Hawaii. It is also 30 days for  deployed  ships  when  the  items  are  available  from stock points in Alaska, Hawaii, and outside the United States or from Combat Logistics Force (CLF) ships throughout  the  following  quarter. . 75 days for deployed ships in areas other than Western Pacific when items are available only in the United  States,  excluding  Alaska  and  Hawaii. l 90 days for deployed ships in Western Pacific when items are available only in the United States, excluding Alaska and Hawaii. The  cognizant  fleet  commander  in  chief  may authorize  changes  to  the  O&ST  when  it  is  considered 10-3