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The Greenroads Rating System

The Greenroads Rating System is a third-party, points-based system available to certify sustainable roadway and transportation infrastructure projects. The system provides metrics to measure the effect of design and construction practices which can be implemented on a project to earn points toward one of four certification awards. More...

Greenroads Foundation

Greenroads Foundation is an independent 501(c)(3) non-profit corporation that advances sustainability education and initiatives for transportation infrastructure. As the developer of the Greenroads Rating System, the Foundation manages the review and certification process for sustainable roadway and bridge construction projects in the U.S. and internationally. More...


Recent News

Project Updates

Earn Street Cred

  • STP exam registration dates now available on the Events page. Last day to be part of the Beta class is 12.31.14.
  • STP exam now provides immediate feedback for scores! Hooray! No more waiting! Get registered for your exam here!
  • Heads up, new Candidate guide revisions coming soon including updates to the education levels, and anticipated credential maintenance requirements.
  • STP Certificates are completed for those who have passed the exam to date! Finally! We appreciate your patience while we took care to decide what they might look like on your wall.
  • There are now 137 STPs from 13 countries and 24 states! See the growing list of professionals and their affiliations in the new and improved STP Directory. Get yourself and your company on the map!

Stay Current

  • Try out the Greenroads self-assessment tool. Use it to make your game plan to get Certified, or just test out the tool for yourself:
  • Speaking of changes to the Manual, register your project TODAY to lock in v1.5. V2 is in the works for release coming soon.



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