Commitment to Accessibility: DOT is committed to ensuring that information is available in appropriate alternative formats to meet the requirements of persons who have a disability. If you require an alternative version of files provided on this page, please contact FTAWebAccessibility@dot.gov.

The Environmental Guidebook
http://www.environment.fhwa.dot.gov/guidebook/chapters/v2ch13.asp

Commitment to Accessibility: DOT is committed to ensuring that information is available in appropriate alternative formats to meet the requirements of persons who have a disability. If you require an alternative version of files provided on this page, please contact FTAWebAccessibility@dot.gov.