The MAC (immediately following the introduction) designates overall
authority and responsibility for the performance of maintenance functions on
the identified end item of component. The application of the maintenance
functions to the end item or component shall be consistent with the capacities
and capabilities of the designated 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.
The tools and test equipment requirements (immediately following the MAC)
list the tools and test equipment (both special tools and common tool sets)
required for each maintenance function as referenced from the MAC.