Shelf-life items that are not marked with any date from which shelf life can be determined and that have  an  extended  cost  of  $50  or  more  will  be reported  by  speedletter  to  the  cognizant  inventory manager,  via  the  TYCOM,  with  a  request  for disposition  instructions.  For  each  item,  the  report will  contain  the  NSN  or  part  number,  item description, quantity, unit of issue, unit price, ex- tended   unit   cost,   supply   source   (if   known), estimated date of receipt on board, and all exter- nal markings obtainable from each unit package or  container. Control and Utilization In  addition  to  the  proper  identification  of shelf-life  stock  in  applicable  inventory  locater records,  the  procedures  in  the  following  para- graphs  are  prescribed  for  effective  control  and maximum  utilization  of  shelf-life  items  before their expiration dates. Packaging, Preservation, and Storage Shelf-life   material   will   be   inspected   upon receipt  to  make  sure  it  is  packaged  and  preserved adequately and should be stored in spaces that are least likely to cause its deterioration. The coolest and  driest  space(s)  available  should  be  used  for the more deteriorative materials such as dry cell batteries, aluminum   electrolytic   capacitors, chemicals, rubber products, and so forth. Storage can be arranged to make sure of issue of the oldest stock first. To facilitate periodic screening, shelf- life  items  should  be  consolidated  in  a  readily accessible area whenever possible. Periodic  Inspection Shelf-life   material   should   be   inspected periodically  (as  frequently  as  necessary,  according to  shelf-life  codes)  for  condition  and  expiration dates. When a multiple quantity item is inspected, units  with  different  expiration  dates  can  be  re- arranged,  if  necessary,  to  place  units  with  the earliest  expiration  date  in  front  of  the  others. Expired Type II Shelf-Life Items Expired  type  II  shelf-life  items  can  be  restored (when within the ship’s capability) per applicable shelf-life action codes in the ML-N or the cogni- zant inventory manager’s instructions. Technical assistance  will  be  obtained  from  other  depart- ments, as required. The expiration dates on the stock  labels  of  restored  items  will  then  be  ex- tended, as appropriate. Expired type II shelf-life items that are not within the ship’s capability to restore  can  be  turned  in  to  the  nearest  ashore supply  activity. Expired Type I Shelf-Life Items Expired  type  I  shelf-life  items  normally  will be  disposed  of  by  removal  from  stock  and  destruc- tion,  unless  the  overaged  items  can  be  used  safely for  secondary  purposes  that  do  not  require  the material  to  be  ready-for-issue  condition. Inventory  Review The  shelf-life  item  inventory  should  be  re- viewed  systematically  in  comparison  with  anti- cipated   requirements   to   make   sure   of   timely turn-in of those items that the ship is unable to restore  or  to  use,  by  or  before  the  material  ex- piration dates. The newer rather than the older stock of an item always will be turned in unless extenuating circumstances are involved that render such action impractical. Type I shelf-life material will  not  be  turned  in  to  supply  activities  in  the United  States  including  Hawaii  if  the  extended cost of the item is less than $50, or the remain- ing storage life is less than 3 months. Type I shelf- life  material  will  not  be  turned  in  to  supply activities  in  Alaska  or  overseas  bases  if  the  ex- tended cost of the item is less than $100 or the remaining storage life is less than 6 months. Such material should be retained on board and used, if  possible,  before  its  shelf-life  expiration  date. Critical Shelf-Life Items Instructions   contained   in   the   previous paragraph  do  not  supersede  existing  directives  for disposition of critical items. Disposition of shelf- life  items  designated  as  critical  can  continue  to be effected under pertinent directives issued by the  cognizant  inventory  manager. STOREROOM   MAINTENANCE AND  SECURITY The  SK  in  charge  of  a  storeroom  (or  group of storerooms) is responsible for the cleanliness, orderliness, material condition, and the security of his or her assigned spaces. The supply officer, the stores officer (depending on the type of ship), and the leading storeroom SK are responsible to make  sure  all  required  storeroom  maintenance 7-6