The U.S. Fish and Wildlife Service (Service) recognizes the critical role of transportation in the economic and ecological well-being of human communities. Transportation projects influence the character of a region by the number of people and amount of goods and services it transports. Transportation designs also influence plant and animal species and their habitats, and the ecological health of the nation. The Service encourages the design of transportation projects that provide the greatest value to the greatest number of people, while avoiding or minimizing impacts to plant and animals species and their habitat, as well as the ecological processes that naturally sustain these areas.

In collaboration with the Federal Highway Administration (FHWA), the Service develops policy and guidance products to help facilitate the agency's role in transportation planning. The Service does this in a variety of ways. By gaining a better understanding of local transportation needs, the Service provides technical information that enables the FHWA, State Departments of Transportation, and local transportation planning organizations to develop alternatives with minimal environmental impacts. Through a streamlined environmental review process, Service participation in transportation planning includes:

  • involvement in statewide/metropolitan planning processes or Statewide Transportation Plans;
  • sharing of data and other information relevant to the integration of conservation and transportation planning;
  • identifying and promoting innovative practices that protect threatened and endangered species, migratory birds, valuable habitat and natural areas such as refuges and parks;
  • identifying and promoting innovative practices that streamline the environmental review process; and
  • promoting partnerships with other federal, state, and local governments and non-governmental organizations to address the efforts above.


Bipartisan Infrastructure Law (BIL)

FAST Act - Fixing America's Surface Transportation Act

FHWA's Eco-Logical Program - An Ecosystem Approach for Developing Infrastructure Projects

FHWA's Environmental Review Toolkit

Synchronizing Environmental Reviews

Contact Information


Handbook on Departmental Review of Section 4(f) Evaluations

This handbook provides guidance in the review of and the preparation of Department of the Interior comments on Section 4(f) evaluations prepared by the U.S. Department of Transportation and its modal administrations: the Federal Highway Administration, the Federal Aviation Administration, the...

Endangered Species Consultation Handbook

This document outlines procedures for conducting consultation and conference activities under section 7 of the Endangered Species Act.


A rocky shoreline of a river. The water is calm. Mist and green branches line the river.
The Ecological Services Program works to restore and protect healthy populations of fish, wildlife, and plants and the environments upon which they depend. Using the best available science, we work with federal, state, Tribal, local, and non-profit stakeholders, as well as private land owners, to...
Pronghorn running through sagebrush with natural gas field facility in background.
The U.S. Fish and Wildlife Service works collaboratively with other federal agencies, industries, and other stakeholders to achieve infrastructure development goals in ways that are sustainable and compatible with the conservation of fish, wildlife, and their habitats.