Travel Reduction Program

Valley Metro light rail train on track

The Travel Reduction Program (TRP) began in 1989 as part of the State of Arizona's response to a court ruling requiring greater efforts to reduce air pollution. The approximately 80 million commuter miles driven each weekday are a significant contributor to regional air pollution (ozone, particulate matter). One outcome of the ruling was the legislation of TRP state statutes that focus on employers and schools. Subsequent revisions to the statute and related Maricopa County ordinance (P-7) reduced the minimum employee site count to 50.

TRP Goals

Employers and schools are asked to reduce single occupant vehicle (SOV) trips and/or miles traveled to the work site by 10 percent each year for a total of five years, and then five percent for three additional years, or until a 60 percent rate of SOV travel is reached. Progress is tracked through an annual commute survey of employer/school sites. The results of the survey are used to develop an annual travel reduction plan that commits the employer/school to implementing and documenting various strategies to reduce SOV trips or miles.

TRP Regional Task Force

The TRP Regional Task Force reviews employer/school survey results and the related plans are officially approved or rejected. These meetings are open to the public and are usually held every four weeks. 

For any organizations seeking to be listed on the Task Force agenda, please submit all requests by the 1st of the month to

  1. Meeting Agendas
  2. Approved Meeting Minutes

Contact Us

To contact the Travel Reduction Program, call 602-506-6750 or email

Page reviewed 13 February 2024