TM 5-4310-379-14
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 II.
a. The MAC assigns maintenance functions based on the following considerations:
(1) Skills available.
(2) Work time required.
(3) 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
