text: Chapter 16
  16-11. A passage point is a designated place where passing units pass through the stationary unit. (See
  paragraph A-32 for more information and symbol.) The location of this point is where the commander wants
  subordinate units to execute a passage of lines. In a forward passage of lines, the passage point marks the
  location where stationary force restrictions placed on the passing unit no longer bind the actions of the passing
  unit. On the other hand, in a rearward passage of lines, the passage point marks the location where the
  stationary unit can restrict the movement and maneuver of the passing force. Between the contact point and
  the release point, the stationary unit controls the passing force’s movement.
  16-12. A passage lane is a lane through an enemy or friendly obstacle that provides safe passage for a
  passing force. (See paragraph A-30 for more information and symbol). The lane may be cleared, including
  being reduced and proofed, as part of a breach operation, or it may be included as part of the design of a
  friendly obstacle. It is a clear route through an obstacle. Passage lanes normally end where a route begins.
  That route should allow the passing unit to move rapidly through the stationary unit’s area.
  PLANNING A PASSAGE OF LINES
  16-13. As with any activity involving transferred combat responsibility from one unit to another, the
  complex nature of a passage of lines involves risk. The passage of lines is either hasty or deliberate. In a
  hasty passage of lines, commanders use verbal orders. In a deliberate passage of lines, both the stationary
  and moving force have time to—
  * Exchange plans, intelligence, databases, and liaison personnel.
  * Conduct reconnaissance.
  * Publish written orders.
  * Conduct briefings and rehearsals.
  16-14. The higher commander directing the passage of lines is responsible for designating—
  * Subsequent missions for both forces.
  * When and under what conditions passage of command takes place.
  * Start and end times for the passage.
  * Contact points between the units involved.
  * Any necessary common control measures.
  That higher echelon commander normally establishes this designated information in an order directing the
  passage. Close coordination and understanding between the units are essential in the absence of higher
  guidance.
  COMMAND AND CONTROL
  16-15. Units plan their passages of lines to maintain enemy contact and provide constant fires on enemy
  forces. They reduce risk and ensure synchronization through detailed planning and centralized execution.
  The need for positive control increases during the passage because of the intermingling of passing and
  stationary forces. The passage requires close coordination, clearly understood control measures, and liaison
  among all headquarters and echelons involved in the passage. Clear identification of the moment or event
  that causes one force to assume responsibility for the assigned area from another is vital to successfully
  performing this task.
  16-16. A passage of lines requires clear determination of responsibilities. During a passage of lines, two
  parallel chains of command operate simultaneously in one area, and this may cause confusion. The passing
  unit’s command posts may co-locate at the stationary unit’s command post after receiving the warning order.
  This co-location reduces the risk associated with a passage because it makes it easier to coordinate between
  the two units. It facilitates planning the passage and establishing common situational understanding. If the
  passing unit cannot co-locate one of its command posts to help plan the passage, it conducts extensive liaison
  with the stationary unit. Following completion of the passage, the planning focus for both units is on their
  operations.
  16-17. Passing forces focus their planning efforts on two general areas: coordination with stationary forces
  and guidance to their subordinate units performing these passages. These planning efforts occur