When this occurs the leading chief is referred to as the group supervisor. The group supervisor is responsible for the proper performance of the 3-M Systems in the work centers under their control. WORK CENTER SUPERVISOR The senior chief petty officer (or senior petty officer if no chief is assigned) within the work center is the work center supervisor. The work center supervisor is responsible for the effective operation of the 3-M Systems in his or her work center. The responsibility can not be delegated to subordinate maintenance personnel. The work center supervisor will receive 3-M Systems training and is responsible for the following: Scheduling and supervising accomplish- ment of weekly work center maintenance tasks. Ensuring preventive maintenance status is shown  correctly  on  work  center  PMS schedules. Informing the division officer or group supervisor of MDS or PMS actions within the work center. Maintaining an adequate supply of 3-M Systems materials for the work center. Ensuring  prompt  documentation  of  all noted material deficiencies in the work center  work  list/job  sequence  number (JSN) log and on OPNAV 4790/CK Form if required. Documenting completed maintenance actions promptly using OPNAV 4790/2K or OPNAV 4790/CK forms when required. Reviewing all 3-M documentation leaving the work center to make sure it is correct, legible,  and  prepared  and  submitted promptly. Persons discovering deficiencies are responsible for completing required documentation. Ensuring maximum use of PMS as a maintenance training aid for work center personnel. Maintaining control and accountability of work center job sequence Verifying that the work current and complete. numbers (JSNs). center CSMP is Reviewing maintenance requirement cards and submitting a PMS feedback report when maintenance requirements are not fully understood; errors are believed to exist; maintenance requirements are believed to be inadequate or excessive or when performance  would  cause  a  hazardous condition  to  exist;  or  replacement documents are required. Maintaining an accurate and current list of effective pages (LOEP) by comparing PMS documentation to actual work center equipment  configuration. Ensuring periodic maintenance requirements (PMR) scheduled for the work center are completed and reported as stated on the PMS, MRC, or PMR. Ensuring proper tests and inspections prior to acceptance of work done by outside activities. Ensuring delivery of test, measurement, or other portable equipments to testing and calibration work centers as indicated on scheduling reports. SHIPBOARD  NONTACTICAL AUTOMATED DATA PROCESSING (ADP) PROGRAM: SYSTEMS (SNAP I AND SNAP II) The Shipboard Nontactical ADP Program (SNAP) concept takes the power of computers with their ability to process information and puts that  power  in  the  hands  of  the  work  center personnel. The SNAP computer systems are highly useful systems. The Navy uses two different SNAP computer systems to accomplish the same basic functions. SNAP I systems are installed at Shore  Intermediate  Maintenance  Activities (SIMAs) and on board larger vessels such as aircraft carriers, tenders, amphibious command ships, and amphibious assault ships. SNAP II systems are installed only on smaller vessels such as frigates, destroyers, and cruisers. The main objectives of SNAP I and SNAP II systems are to accomplish the following: • Reduce the current shipboard administrative workload associated with equipment mainte- nance, supply and financial management, and personnel administration 4-25