[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: 32CFR651.38] [Page 414] 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 E--Environmental Assessment Sec. 651.38 Existing environmental assessments. EAs are dynamic documents. To ensure that the described setting, actions, and effects remain substantially accurate, the proponent or installation Environmental Officer is encouraged to periodically review existing documentation that is still relevant or supporting current action. If an action is not yet completed, substantial changes in the proposed action may require supplementation, as specified in Sec. 651.5 (g).