“One-third-cut” folders   are   normally preferred  over “straight-cut” folders because they allow the RP to glance through a file drawer for a particular folder without having to look at each folder   separately   as   is   usually   required   with “straight-cut”  folders.  NOTE:  “One-third-cut” folders  are  ordered  by  tab  position  in  lots  of  50 folders per box. Before requisitioning file folders and in order to ensure that a sufficient number are maintained in the office of the chaplain, the RP should consider the volume of material to be filed, the number of filing drawers available, and the  variety  of  subjects  that  need  to  be  filed  in separate  folders. It should be noted that file folders prescribed for use in the Marine Corps are listed in Records Management   Program   for   the   Marine   Corps (MCO  5210.11).  RPs  assigned  to  Marine  Corps units  should  check  this  publication  prior  to  re- quisitioning  any  folders. CARD FILES Card files such as the one shown in figure 3-4 are  often  used  in  the  office  of  the  chaplain  for such purposes as establishing and maintaining a tickler system. The procedures for establishing a tickler  system  will  be  explained  in  another  section of  this  chapter.  Standard  3"  X  5"  and  5"  X  8" card  files  are  the  ones  most  often  used.  These types are readily available in the Navy or Marine Corps supply systems. These card files should be used  in  the  office  of  the  chaplain  to  serve  as receptacles  for  index  cards  with  information specified   by   the   command   chaplain.   It   is Figure 3-4.—Card file (5" x 8"). important  for  the  RP  to  periodically  check  the card  files  to  ensure  that  information  is  up  to  date. CLASSIFIED FILES AND  RECORDS The  Information  Security  Program  as  out- lined  in  the  Information    Security    Program Regulation   (DOD  5200.1R)  and  Department  of the  Navy  Information  Security  Program  Regu- lation  (OPNAVINST   5510.1)   for   safeguarding classified  information  was  explained  in  Chapter 2.  Since  all  RPs  must  be  eligible  for  access  to classified  material,  it  is  important  to  note  the security  requirements  for  file  cabinets  that  con- tain  classified  material. Basic guidelines for determining the security requirements of file cabinets that contain classified information   are   contained   in   OPNAVINST 5510.1.  The  following  security  precautions  were extracted  from  this  publication  and  should  be observed  when  classified  material  is  handled  or stowed: A portable cabinet has little security value since it can be transported easily and, therefore, should  NOT  be  used  for  stowage  of  classified material. Combination  locks  are  more  secure  than key  locks  and  should  be  used  to  guard  against unauthorized personnel entering a file cabinet that contains   classified   information. Wood  file  cabinets  should  NOT  be  used to   stow   classified   material   since   they   do   not offer  protection  against  fire  damage. Metal  cabinets  should  be  used  to  stow classified   material   since   they   offer   protection against  theft  and  fire. Vaults  provide  the  most  secure  means  of stowing  classified  material  and  should  be  used when  available. The  RP  should  check  with  personnel  in  the  ad- ministrative  department  whenever  questions  arise concerning  the  stowage  of  classified  material. 3-3