Strategic Habitat Conservation: http://www.fws.gov/science/shc/

Federal Highway Administration’s “Eco-Logical:  An Ecosystem Approach for Developing Infrastructure Projects: http://www.environment.fhwa.dot.gov/ecological/eco_entry.asp

Federal Highway Administration's Environmental Streamlining: http://www.environment.fhwa.dot.gov/strmlng/index.asp

Federal Highway Administration's Environmental Review Toolkit: http://environment.fhwa.dot.gov/index.asp

Surface Transportation Environment and Planning Cooperative Research Program (STEP): http://www.fhwa.dot.gov/hep/step/index.cfm

Federal Highway Administration's Nationwide ESA Web Tool: http://environment.fhwa.dot.gov/ESAWebTool/Default.aspx

Transportation Liaison Community of Practice: http://environment.fhwa.dot.gov/liaisonCOP/default.aspx