becomes exposed to moist air and a green copper carbonate  may  develop.  This  is  especially  true if  the  salt  content  of  the  air  is  high.  To  remove this green carbonate, gently rub the buttons with an  acetic  acid  or  a  solution  containing  acetic acid,  such  as  vinegar  or  Worcestershire  sauce. Commercial  products  are  also  available  for  this purpose. After rubbing with acetic acid solution, thoroughly  wash  the  buttons  with  clean  water.  To keep your embroidered insignia clean and bright, occasionally  scrub  it  with  a  nail  brush  and  a diluted solution of ammonia. You should do this as soon as tarnish or corrosion appears, as once it  has  gained  a  foothold,  the  device  may  not  be restorable. Gold  bullion  lace  tarnishes  rapidly  and  may deteriorate when placed in contact with, or hung near,  any  substance  containing  sulphur.  Some items  that  may  contain  sulphur  are  rubber  and ordinary   manila   or   kraft   paper.   Gold   bullion should be cleaned by an experienced tailor. If you clean  it  yourself,  you  can  use  commercial  non- toxic  preparations  and  liquid  cleaners.  For  best results  when  using  these  commercial  preparations or  cleaners,  follow  the  manufacturer’s  instructions on  the  label. Clean gold-filled and sterling silver rhodium finished  parts  of  the  metal  insignia  by  washing with  soap  and  water. SUMMARY This chapter began with a review of the watch, quarter,  and  station  bill.  Your  responsibilities concerning making assignments to and updating the  watch,  quarter,  and  station  bill  were  also discussed. Drill  and  formation  was  a  review  of  basic  drill commands  you  need  to  know  when  presenting  the division  during  inspection.  The  procedure  used in  presenting  the  division  during  inspections, quarters,  and  ceremonial  events  was  reviewed. Watch standing outlined your responsibilities when  standing  divisional  duty  officer  or  officer of  the  deck  (in  port). Command   general   advisory   presented   the basic function, purpose, and membership of both the command mess advisory board and the mess audit  board. The chapter concluded with a review of CPO uniform  history  and  requirements  and  how  to maintain  your  uniform. REFERENCES Drill and Ceremonies Manual and Interior Guard Manual;   Promulgation   of,   SECNAVINST 5060.22, Office of the Secretary of the Navy, Washington,   D.C.,   1986. Personnel  Qualification  Standard  for  Deck Watches in Port,  NAVEDTRA  43397A,  Chief of Naval Education and Training, Pensacola, Fla.,  1987. Standard  Organization  and  Regulations  of  the Navy,  OPNAVINST  3120.32B,  Office  of  the Chief   of   Naval   Operations,   Washington, D.C.,   1986. Surface  Warfare  Division  Officer  Course,   CIN 4-AHA-0118,  Volume  27,  Chief  of  Naval Education  and  Training,  Pensacola,  Fla., 1990. U.S,   Navy   Regulations,   1990,   Office  of  the Secretary   of   the   Navy,   Washington,   D.C., 1990. United States Navy Uniform Regulations,  NAV- PERS  15665G,  Naval  Military  Personnel Command,   Washington,   D.C.,   1988. 7-26