45 C.F.R. § 641.19 Modification of environmental documents.
Title 45 - Public Welfare
The responsible official should revise or supplement an environmental document if there is a change in a proposed action that may have more than a minor or transitory effect on the antarctic environment, or if there are new circumstances or information that indicate the action may have impacts not anticipated in the original environmental document.
Title 45: Public Welfare
PART 641—ENVIRONMENTAL ASSESSMENT PROCEDURES FOR PROPOSED NATIONAL SCIENCE FOUNDATION ACTIONS IN ANTARCTICA
§ 641.19 Modification of environmental documents.
