[Code of Federal Regulations]
[Title 32, Volume 4]
[Revised as of July 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 32CFR651.16]

[Page 406]
 
                       TITLE 32--NATIONAL DEFENSE
 
              CHAPTER V--DEPARTMENT OF THE ARMY (CONTINUED)
 
PART 651--ENVIRONMENTAL ANALYSIS OF ARMY ACTIONS (AR 200-2)--Table of Contents
 
  Subpart B--National Environmental Policy Act and the Decision Process
 
Sec. 651.16  Cumulative impacts.

    (a) NEPA analyses must assess cumulative effects, which are the 
impact on the environment resulting from the incremental impact of the 
action when added to other past, present, and reasonably foreseeable 
future actions. Actions by federal, non-federal agencies, and private 
parties must be considered (40 CFR 1508.7).
    (b) The scoping process should be used to identify possible 
cumulative impacts. The proponent should also contact appropriate off-
post officials, such as tribal, state, county, or local planning 
officials, to identify other actions that should be considered in the 
cumulative effects analysis.
    (c) A suggested cumulative effects approach is as follows:
    (1) Identify the boundary of each resource category. Boundaries may 
be geographic or temporal. For example, the Air Quality Control Region 
(AQCR) might be the appropriate boundary for the air quality analysis, 
while a watershed could be the boundary for the water quality analysis. 
Depending upon the circumstances, these boundaries could be different 
and could extend off the installation.
    (2) Describe the threshold level of significance for that resource 
category. For example, a violation of air quality standards within the 
AQCR would be an appropriate threshold level.
    (3) Determine the environmental consequence of the action. The 
analysis should identify the cause and effect relationships, determine 
the magnitude and significance of cumulative effects, and identify 
possible mitigation measures.