one  shown  in  figure  2-3  (OPNAV  5070/11).  These record  cards  will  help  you  efficiently  maintain  an up-to-date  and  complete  inventory  of  publications. TECHNICAL  LIBRARY Whether you are on a small or large ship, some type of  division  technical  library  for  technical  pubs, reference pubs, training pubs, handbooks, and so on, should   exist. Besides  the  publications  already  mentioned,  your tech library should have at least one up-to-date copy of each  applicable  equipment  (and  systems)  technical manual. Assign at least one petty officer to maintain the division’s  ready  reference  library  (tech  library).  Assign a second person as a backup so that your tech library will stay current if the assigned tech library petty officer is absent. VALIDATION  AND  INVENTORY Just as with other publications, you should have a master  inventory  of  the  tech  library  publications.  The publication record and inventory card, OPNAV 5070/11 (fig. 2-3), will help the tech library petty officer keep track of publications (issued, on hand, and so on). When changes  to  publications  arrive,  you  can  consult  the record cards for the location and quantity of publications requiring changes. In this way you can ensure that all your publications receive changes as they should. As  publications  become  unusable  because  of extensive wear and damage, order new publications (and changes) to replace them. Issue these replacements to   work   center   personnel   as   necessary   to   avoid confusion; be sure the old publications are discarded after the new publications have been received. (Be sure to   abide   by   security   regulations   as   you   discard publications.) There  are  several  methods  used  in  setting  up  and maintaining a tech library. Publications NWP-0 and the IMA  Library  Guide  (S8800-00-GIP-000)  pertain  to major  technical  libraries.  However,  applicable  sections of the manuals may help you with your local situation. Another problem of maintaining publications is keeping them updated. Of real help to you will be the Navy  Stock  List  of  Publications  and  Forms,  NAVSUP 2002,  and  the  Enhanced-Ships  Technical  Publications System  (E-STEPS)  products. The NAVSUP 2002 is a master set of microfiche, issued quarterly, that lists most Navy publications and forms. Each edition supersedes and replaces the entire previous edition. The NAVSUP 2002 contains three major sections: 1. Forms 2. Publications 3.  Naval  technical  directives This  microfiche  set  provides  status  information such  as  “canceled,”   “canceled-no superseding stock numbers, ”  “canceled-incorporated  in  basic  stock number, ” “replaced by,” and effective dates. The  Enhanced  Ships  Technical  Publications  System (E-STEPS) is also a master set of microfiche. Several E-STEPS  data  products  contain  information  concerning technical documentation supporting general documents; ships’   selected   records;   ships’   electronics;   hull, mechanical  and  electrical  (HM&E)  and  ordnance systems;  and  equipments  under  the  cognizance  of  the Naval  Sea  Systems  Command  (NAVSEA)  and  the Space  and  Naval  Warfare  Systems  Command (SPAWAR). The Publication Applicability List  (PAL) is one of the products of E-STEPS. This microfiche set is used to determine the publication needs of the ship/shore station to which it applies. The PAL is an important key to  identifying  the  technical  manual  you  need.  It  applies to  NAVSEA  and  SPAWAR  technical  manuals  for systems and equipments reported to be installed on your ship. The PAL lists publications that apply to, but are not required  for,  your  ship. Another  publication  you  will  need  for  operating  a technical library is the  Technical  Manual  Identification Numbering System (TMINS) Application Guide and Index,  M0000-00-IDX-000/TMINS.  This  publication  is the  sole  reference  handbook  for  all  component commands  involved  with  the  composition,  construction, interpretation, or assignment of technical manual or associated  technical  document  identification  numbers. This guide will help you understand how the TMINS numbers  apply  to  the  new  publication  numbering system. A  publication  used  to  find  current  listings  for instructions   by   Washington,   D.   C.,   headquarters organizations is the  Department of the Navy Directives Issuance   System   Consolidated   Subject   Index, NAVPUBINST  5215.1.  This  index  has  a  listing  of instructions  issued  by  Washington,  D.  C.,  headquarters organizations. It is a numerically indexed and divided 2-8