[Code of Federal Regulations]
[Title 49, Volume 5]
[Revised as of October 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR520.31]

[Page 77]
 
                        TITLE 49--TRANSPORTATION
 
                            OF TRANSPORTATION
 
PART 520--PROCEDURES FOR CONSIDERING ENVIRONMENTAL IMPACTS--Table of Contents
 
                          Subpart B--Procedures
 
Sec. 520.31  Amendments or supplements.

    A draft or final environmental impact statement may be amended or 
supplemented. Supplements or amendments should be considered when 
substantial changes are made in the proposed or ongoing action that will 
introduce a new or changed environmental effect of significance to the 
quality of the environment, or significant new information becomes 
available concerning its environmental aspects. In such cases, the 
supplement or amendment shall be processed in consultation with TES with 
respect to the need for, or desirability of, recirculating the statement 
for the appropriate period. TES concurrence must be secured before 
issuance.