text: Appendix B
  Figure B-2. Fire support coordination line example
  B-9. The decision on where to place or even whether to use a FSCL requires careful consideration. If used,
  its location is based on estimates of the situation and concept of operations. The establishment of a FSCL
  does not create a FFA beyond the FSCL. Engagements beyond the FSCL must be consistent with the
  establishing commander's priorities, timing, and desired effects. Location of enemy forces, anticipated rates
  of movement, concept and tempo of the operation, organic weapon capabilities such as wide-area munitions,
  or those with delayed effects, and other factors are all considered by the commander. The FSCL is normally
  positioned closer to the FLOT in the defense than in the offense; however, the exact positioning depends on
  the situation. Placing the FSCL at greater depths will typically require support from higher HQ and other
  supporting commanders. Also, when the FSCL is positioned at greater depth, there is greater requirement for
  detailed coordination with the establishing commander and can slow the expeditious clearance of fires short
  of the FSCL.
  B-10. Attacks on surface targets short of the FSCL, during the conduct of joint interdiction operations, must
  be controlled by, and/or coordinated with, the appropriate land or amphibious force commander.