Environment and sustainability


Sustainability makes tomorrow better than today

Sound Transit supports people, planet and prosperity by providing affordable, environmentally-friendly public transit that connect residents to where they live, work and play.

Sustainability is part of our daily business to enhance regional quality of life by:

  • Reducing car trips by carrying more riders.
  • Supporting smart regional growth.
  • Fostering transit-oriented development and improved transit access.
  • Designing and building greener projects.
  • Operating fleets and facilities more efficiently.

Continually improving

Sound Transit maintains an internationally certified (ISO 14001) Environmental and Sustainability Management System (ESMS) to be accountable for controlling environmental impacts, maintaining environmental compliance and demonstrating performance improvement. You can review our environmental policy.

You can view Sound Transit's environmental and sustainability goals in the 2019 Sustainability Plan. You can review our 2024 sustainability targets here. You can review our 2023 Year-in-Review here.

2022 Sustainability Progress Report

The 2022 Sustainability Progress Report and 2022 Sustainability Progress Report Appendices provide a snapshot of the agency’s progress in making transit sustainable for Central Puget Sound region.


Perry Weinberg
Director, Office of Environmental Affairs and Sustainability and Senior Legal Counsel
perry.weinberg@soundtransit.org, 206-689-4931

More information on Sound Transit's Sustainability Initiative or ESMS: esms@soundtransit.org