ARM SIGNALS
The following arm signals are prescribed. In making signals either arm may be used. Officers who receive signals on the firing line "repeat back" at once to prevent misunderstanding.
Forward, MARCH. Carry the hand to the shoulder; straighten and hold the arm horizontally, thrusting it in the direction of march.
This signal is also used to execute quick time from double time.
Halt: Arm held stationary. Double Time: Arm moved up and down several times.
HALT. Carry the hand to the shoulder. Thrust the hand upward and hold the arm vertically.