Cox is principal of Wendell Cox Consultancy, an international firm specializing in public policy, economics, transport and demographics. He was appointed to three terms on the Los Angeles County Transportation Commission by Los Angeles Mayor Tom Bradley, and served from 1977 to 1985. During that time he chaired two American Public Transit Association committees. He has completed projects in the United States, Canada, Australia, New Zealand, the United Kingdom, Europe, Africa and Asia.
The Amtrak Reform Council was established under the Amtrak Reform and Accountability Act of 1997. The Amtrak Reform Council will report to Congress annually on the operations of Amtrak and will make recommendations on the future operation of Amtrak. The Council is comprised as follows: three appointments each made by the President, Speaker of the House and Senate Majority Leader and one appointment each by Senate Minority Leader and House Minority Leader.