work authorization (DA Form 2407 or DA Form 2415); the DMWR; the process flow sheet;
the line layout; and the SOP.
(j) Obtaining approval of the SOP. The SOP shall be approved by the commanding officer or by
a qualified member of his staff, who has been delegated the responsibility for review and
authority for approval. If the plan is disapproved, the senior ammunition NCO must correct
the plan until it is acceptable and approved.
g. Line Layouts.
(1) The objective of all planning is construction of the maintenance line and actual processing of the
item. The line is arranged on the basis of the flow sheet. Although it may take many forms, it
will usually follow the U type line or the straight line.
(2) The U line (Figure 8) is ordinarily employed when there is only one road available for use in
supplying and removing processed items.
Figure 8. A U-shaped layout, used when only one road is available