Agencies
Services
Federal CSS Information
The federal government, through the Federal Highway Administration (FHWA), is encouraging states to adopt the CSS approach to transportation planning and design.
The FHWA implemented, in 1997, a pilot project for CSS, using CSS techniques on transportation projects in five states across the country: Kentucky, Utah, Minnesota, Maryland, and Connecticut. (Please visit the FHWA's CSS website for further details.) All of these states have since adopted the CSS approach in their transportation decision-making.
Currently, 43 out of the 50 states have some sort of CSS policy or program.
The FHWA has published a guidebook for using the CSS approach and techniques. View the FHWA's explanation and definition of CSS, Flexibility in Highway Design.