DCR regulations allow the use of ACER-11 to determine whether roads and property have been impacted in 4VAC50-20-45 and 4VAC50-20-52(A), but do not allow ACER-11 to be used to determine whether roads and property have been impacted in 4VAC50-20-52(B).  ACER-11 should be an allowable methodology to determine whether roads and property have been impacted in 4VAC50-20-52(B).