An official website of the United States government
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Three classes of action are used for evaluation of impacts a project is likely to have on the human and natural environment
Companion Resource (PDF, 156 KB) : Includes the printable script for this video
Web Resources: Includes Web links to related Code of Federal Regulations and other links appropriate to this video module.