used in the Directive Issuance System are instructions, notices,  and  change  transmittals. Instructions  are  directives  that  contain  information of a continuing nature or require continuing action. An instruction has a continuing reference value, and is effective  until  the  originator  cancels  or  supersedes  it. Notices  are  directives  of  a  onetime  nature  or  that contain  information  or  require  action  applicable  for  a brief period only. A notice has the same force and effect as an instruction, but it does not have permanent value. Therefore,   it   contains   provisions   for   its   own cancellation. When the exact length of time a notice is to remain in effect cannot be determined at the time of issuance, the specific date for record purposes is set far enough  in  the  future  to  allow  all  necessary  use  of  the notice. A change transmittal is the medium used to transmit changes   to   an   instruction   or,   under   extenuating circumstances, a notice. Each transmittal describes the nature of the change and gives directions for making them.   Directives   are   identified   by   designation information.  Using  “SECNAVINST  5215.1”  as  an example, “SECNAV” is the issuing authority, “INST’ is the  type  of  directive,  “5215”  is  the  subject  identification number,   “1”   is   the   consecutive   numbering   for instructions  by  the  directive  control  point.  The consecutive numbers assigned to instructions, which are later canceled, are not reused. The period (.) is used to separate  the  subject  identification  and  consecutive numbering.  When  a  change  is  made,  the  change transmittal number and its date are shown on the page(s) that   contain(s)   the   change;   for   example, SECNAVINST  5215.1,  Change  Transmittal  1,  26  Jan 1993.”   A   revised   instruction   will   retain   all   the designation information with the addition of a suffix capital letter (the first revision “A,” the second “B,” etc.) immediately following the consecutive number. Each change transmittal is identified in the designation line of the transmittal by the same number as the directive it changes  (in  the  case  of  notices,  the  date),  plus  an assigned  change  transmittal  number  added  to  the identification;  for  example,  “SECNAVINST  5215.2, Change  Transmittal  1.” You will use different instructions and notices when performing your daily tasks. They are issued by various commands,  bureaus,  ships,  stations,  and  operating forces.  Many  of  the  directives  used  in  aircraft maintenance are issued by Headquarters, Naval Air Systems  Command.  They  are  known  as  NAVAIR instructions  or  notices.  The  directives  issued  by  Chief of Naval Operations are known as OPNAV instructions or notices. Refer to  Department  of  the  Navy  Directives Issuance  System,  SECNAVINST  5215.1,  for  more information. The   NAMP,   OPNAVINST   4790.2   (series),   is sponsored  and  directed  by  the  Chief  of  Naval Operations  (CNO).  It  addresses  CNO  concepts, objectives,   policies,   programs,   organizations,   and responsibilities as they apply to aviation maintenance for each level of command. This instruction outlines the duties and responsibilities of a supervisor working in the material control division of a squadron or AIMD, or in the  aviation  support  division  of  the  supply  department. The  Uniform   Material   Movement   and   Issue Priority System  (UMMIPS),  OPNAVINST  4614.1F, contains  the  following  information: l l l l l l l Force  activity  designator  (F/AD) Issue policy designator Requisition  processing Delivery  dating Mission  essential  material Abuses and policing of the priority system Expedited handling of critically needed items The Shore and Fleet Small Purchase and Other Simplified   Purchase   Procedures,   NAVSUPINST 4200.85  (series),  provides  instruction  and  guidance concerning  purchase  or  procurement  of  material  from commercial  suppliers.  This  instruction  was  written  to implement and supplement the Federal Acquisition Regulation  (FAR)  and  the  Department  of  Defense Federal  Acquisition  Regulation  Supplement  (DFARS). The  Fleet  Use  of  MILSTRIP,  NAVSUPINST 4235.3, is designed to be used for indoctrination and training  of  fleet  personnel.  It  contains  illustrations  and explanations that make it a valuable training aid as well as a handy reference. You will often be required to prepare or process requisitions   for   component   parts   required   for incorporation  of  technical  directives  (TDs).  A  TD  may direct  that  component  parts  or  material  be  added, removed,  changed,  altered,  relocated,  or  repositioned. NAVAIR   has   management   responsibility   for   the Configuration Management Program. NAVAIRINST 5218.8 contains specific information concerning the TD program.  Additional  information  concerning  TD compliance at the O, I, and D levels of maintenance, documentation  procedures,  and  reporting  requirements 2-9