MAINTENANCE ALLOCATION CHART (MAC)
SECTION I. INTRODUCTION
THE ARMY MAINTENANCE SYSTEM MAC.
a. This introduction (section I) provides a general explanation of all maintenance and repair
functions authorized at various maintenance levels under the standard Army Mainte-
nance System concept.
b. The Maintenance Allocation Chart (MAC) in sections II, III and IV designates overall
authority and responsibility for the performance of maintenance functions on the identi-
fied end item or component. The application of the maintenance functions to the end
item or component will be consistent with the capacities and capabilities of the desig-
nated maintenance levels, which are shown on the MAC in column (4) as:
Unit - includes two subcolumns, C (operator/crew) and O (unit) maintenance.
Direct Support - includes an F subcolumn.
General Support - includes an H subcolumn.
Depot - includes a D subcolumn.
c. Section V contains supplemental instructions and explanatory notes for a particular