Arcadis US Inc.—a design, engineering, and management firm based in Highlands Ranch, CO—is the latest APTA member organization to sign on to the APTA Sustainability Commitment, demonstrating its support for sustainability efforts.

The purpose of the Sustainability Commitment, established in 2009, is to give APTA members credit for the efforts they are already making and to support those who are taking first steps. It sets out common sustainability principles, an action plan, and a course for progress.

APTA members who sign on commit to implementing core internal processes and actions that set the basis for continuous improvement on environmental, social, and economic sustainability. Signatories can obtain higher recognition levels by achieving additional actions, introducing long-term processes, and attaining reduction targets.