ammunition-handling operations are in progress, or by a   ship   underway   during   an   ammunition   handling evolution. 7.    Ammunition  evolutions  involving  direct  con- tact with ammunition components are curtailed during local atmospheric disturbances, such as thunderstorms or high winds. Operations aren't resumed until non-hazardous conditions prevail. 8.    Stowage  of  privately  owned  ammunition  and small arms is permitted aboard ship if approved by   the   commanding   officer.   This   type   of stowage is subject to the security requirements of  chapter  700  of  the  Naval  Ships  Technical Manual,  Ammunition Handling and Stowage, NAVSEA S9086-XG-STM-000. 9. Ships  and  craft  entering  commercial  or  naval shipyards for periods longer than 6 weeks are completely offloaded of all ammunition, except  the  small  arms  ammunition  that  the commanding  officer  considers  necessary  for the  maintenance  of  security  aboard  ship  and inert ordnance items such as bomb fins. If a ship is expected to remain in the yard for less than  6  weeks,  the  ship  offloads,  as  a  minimum,  all ammunition   or   explosives   that   can't   be   stowed   in sprinkler-protected or floodable spaces. 10. The number of personnel engaged in ammunition and explosive handling operations is  limited  to  the  minimum  necessary  for  safe and efficient performance of the work. Unauthorized  personnel  aren't  permitted  in  a magazine,  missile  handling  or  testing  area,  or at any handling operation involving explosives or ammunition. A responsible escort accompanies visiting personnel. 11. As a general rule, any pyrotechnic device that is armed and otherwise prepared for launching or   activating   but   hasn't   been   used   may   be dearmed,  restored  to  its  original  packing,  and returned to stowage. The exceptions to this rule are Mk 25 and Mk 58 marine location markers, Mk  46  decoy  flares,  and  aircraft  parachute flares.   If   such   devices   can't   be   made   safe beyond   question,   they   must   be   stowed   in lockers  or  disposed  of  according  to  current directives. 12. When   the   temperature   in   a   magazine   con- taining  gas  generators,  propelling  charges,  or fixed   ammunition   reaches   110°F   or   above, certain actions must be taken to preserve safety and stability of the explosives. When the magazine temperature is between 110°F and 120°F, the magazine should be artificially cooled, as  practical.  The  number  of  hours  and  the  maximum temperature   reached   during   each   hour   of   exposure above  110°F,  but  less  than  120°F,  must  be  recorded. When the cumulative total number of hours of exposure to these temperatures reaches 500 hours, the ammunition   must   be   expended   or   turned   into   an ammunition activity, stating the reason for return. If the ammunition  was  subjected  to  these  temperatures  for less  than  500  hours,  it  should  be  expended  during subsequent firings. When the magazine temperature is between 120ºF and 130ºF, the magazine should be artificially cooled, as practical. A special record of the number of hours of exposure and the maximum temperature reached each hour should be made. When a cumulative total of 100 hours  of  exposure  above  120ºF  is  reached,  prior  to  a cumulative  total  of  500  hours  of  exposure  between 110ºF and 130ºF, the ammunition must have priority for expenditure  or  be  turned  in  to  an  ammunition  storage activity at the first opportunity. At   temperatures   above   130ºF,   the   ammunition should be removed from the magazine and turned in to the   nearest   ammunition   activity.   When   there   is   no storage activity immediately available and the ship is in port,  the  ammunition  may  be  retained  on  board  in  a segregated  magazine  or  in  a  ready-service  room  or locker.  All  possible  methods  should  be  used  to  lower the temperature of the ammunition until the ship is able to turn it in to the nearest ammunition activity. REVIEW NUMBER 4 ANSWERS A1. For information about transporting hazardous   materials,   you   should   refer   to NAVSEA SW020-AG-SAF-010. A2. To transport explosives off-station, the driver must be 21 years of age. 12-23