145. When an orderly is ordered to carry a message, he will be careful to deliver it exactly as it was given to him.
146. His tour of duty ends when he is relieved by the orderly selected from the guard relieving his own.
147. Orderlies are members of the guard, and their name, company, and regiment are entered on the guard report and lists of the guard.
148. If a color line is established, sufficient sentinels are placed on the color line to guard the colors and stacks.
149. Color sentinels are posted only so long as the stacks are formed. The commander of the guard will divide the time equally among them.
150. When stacks are broken, the color sentinels may be permitted to return to their respective companies. They are required to report in person to the commander of the guard at reveille and retreat. They will fall in with the guard, under arms, at guard mounting.
151. Color sentinels are not placed on the regular reliefs, nor are their posts numbered. In calling for the corporal of the guard, they call: "Corporal of the guard. Color line."
152. Officers or enlisted men passing the uncased colors will render the prescribed salute. If the colors are on the stacks, the salute will be made on crossing the color line or on passing the colors.
153. A sentinel placed over the colors will not permit them to be moved except in the presence of an armed escort. Unless otherwise ordered by the commanding officer, he will allow no one to touch them but the color bearer.
He will not permit any soldier to take arms from the stacks or to touch them except by order of an officer or noncommissioned officer of the guard.