FM 3-34.22 - Army Electronic Publications & Forms - U.S. Army

Clearing Operations
D-36. The results of a clearing action may have adverse effects to nearby cleared areas. Certain pieces of
equipment, like flails, may kick EHs into previously cleared areas, as far as 100 meters from the flail.
Proofing must clear this area (usually by Soldier inspection, but at times mine dog detection teams are
required) in addition to the specified area. The end state of a clearing phase means that the area is ready for
proofing.
PROOFING
D-37. Proofing involves checking the entire cleared area. Using a different type of asset than what was
used in the clearing phase should yield a reasonable assurance that the area is clear of all EHs and safe for
use. The end state of the proofing phase means that the area is ready for use.
FINAL MARKING
D-38. Permanent marking systems should be used to indicate the outer edge of EH areas that are not
cleared immediately and should employ a combination of markers, signs, and physical barriers.
11 February 2009 FM 3-34.22 D-15