TDM-CP® Certification for TDM Professionals

The Association for Commuter Transportation's TDM-CP credential is the only certification program for Transportation Demand Management (TDM) professionals. This program supports your continuing education and professional development, enhancing the knowledge and performance of local, state, federal, private-sector and non-profit TDM professionals
The role of the TDM professional continues to expand with increased congestion in urban cores, mobility challenges in rural and developing regions, the growth of new business districts, shifting commuter patterns, demand for convenience, the development of technologies that have created more mobility options, and now in response to an recovery planning related to the COVID-19 pandemic.  TDM-CP lays the foundation for ensuring that highly qualified individuals are available to meet the challenge of addressing the diverse needs of commuters, communities, and employers.
The TDM-CP exam can be applied for year round.  Upon approval of your application, you will have one-year to take the exam.  Exams can be taken at any time.
A list of current Transportation Demand Management Certified Professionals (TDM-CP) can be found here.

Benefits of earning your TDM-CP include:

  • Be recognized as a leader in the field
  • Stand out to your employer
  • Strengthen your case for promotions
  • Increase your marketability
  • Grow your professional creditibility and subject matter expertise
  • Invest in your professional growth

Quick Resources


  About the Exam   Candidate Handbook   Exam Application      Study Guide    Exam Content Outline


Certification Board of Trustees

Heather Salem
Principle Program Manager - Commute Operations Lead Genentech (650)392-4496
David Lieb, TDM-CP
Principal and National Director of Higher Ed Mobility Planning Walker Consultants (607)227-6801
Vice Chair
Chris Hagelin
Principal Planner City of Boulder - GO Boulder
Aaron Buckley
Aaron Buckley
Parking Manager Mayo Clinic (937)360-9590
Brian Canepa, TDM-CP
Principal W-Trans
Sabrina Green
Sabrina Green
Program/Project Administrator Atlanta Regional Commission
Sara Hendricks, TDM-CP
Sara Hendricks, TDM-CP
TDM-CP, AICP Senior Research Associate Center For Urban Transportation Research (CUTR) (813)974-9801
Eva Hsu
Director ICF (917)421-3411
Andrea Leary, TDM-CP
President Northeast Transit Pl & Mgt Corp / NorthEase Consulting Group (781)864-3096
Russell McDermott
Program Director AECOM (585)506-7415
Nicholas Quint
Nicholas Quint
TDM-CP, AICP Transportation Network Manager Virginia Polytechnic Institute and State University (540)235-6247
Courtney Reynolds, TDM-CP
Courtney Reynolds, TDM-CP
TDM-CP Director of Partnerships Agile Mile, Inc.
David Sorrell, TDM-CP
David Sorrell, TDM-CP
TDM-CP TDM Administrator / Acting Principal Mobility Planner University of California Berkeley
Patrick Sullivan, TDM-CP
Executive Director Seaport TMA (617)249-3085
Karen Winger
AICP Zero Emission Lead, Southeast Longwood Collective (404)364-5237