ARMY TM 9-2805-256-14 AIR FORCE TO 38G2-102-2 NAVY NAVFAC P-8-611-14E APPENDIX  B MAINTENANCE ALLOCATION CHART Section I. INTRODUCTION B-1. Maintenance  Allocation  Chart  (MAC).  This MAC assigns maintenance functions in accordance with the  Three  Level  Maintenance  Concept. B-2. Use of the Maintenance Allocation Chart, Section Il. a. The MAC assigns maintenance functions based on the following considerations: (1) (2) (3) Skills  available. Work  time  required. Tools  and  test  equipment  required  and/or  available. b. If a lower level of maintenance identified in column (4) of the MAC cannot perform all tasks of a single maintenance function (e.g., test, repair), then the higher level that can perform other tasks of that function is also indicated. c. Higher maintenance levels are automatically authorized to perform maintenance functions assigned to a lower  maintenance  level. d. Higher maintenance levels will perform the maintenance functions of lower maintenance levels when required or directed by the Commander who has authority to direct such tasking. e. Assignment of a maintenance function in the MAC does not carry automatic authorization to carry the related spare or repair parts in stock. Information to requisition or secure parts will be as specified in the associated  RPSTL. f. Normally, there  will be no deviation from the assigned level of maintenance. However,  in cases of operational  necessity,  maintenance  functions  assigned  a  higher  level  may,  at  the  request  of  the  lower  level,  be assigned to the lower level on a one-time basis, if specifically authorized by the maintenance officer of the higher level to which the function is assigned. In such a case, the special tools, equipment, etc., required by the lower level to perform this function will be furnished by the higher level assigned the function. Also, transfer of a function to a lower level does not relieve the higher level of responsibility for the function, so the higher level will provide technical  supervision  and  inspection  of  the  function  being  performed  at  the  lower  level. B-3. Maintenance  Functions.  Maintenance functions will be limited to and defined as follows: a. Inspect.  To determine the serviceability of an item by comparing its physical, mechanical, and/or electrical characteristics  with  established  standards  through  examination  (e.g.,  by  sight,  sound,  or  feel). b. Test. To verify serviceability and detect incipient failure by measuring the mechanical or electrical characteristics  of  an  item  and  comparing  those  characteristics  with  prescribed  standards. B-1