In his government relations practice, Mr. Coxson is an advocate for the business community before Congress and the Executive Branch. He represents individual corporations and national trade associations, as well as business coalitions which he has been responsible for organizing on a variety of workplace issues. He has testified on behalf of business clients and as an expert witness before federal administrative agencies and both Houses of Congress. In addition, Hal is a frequent author and guest speaker on workplace policy, and has appeared on numerous television and radio programs as a business representative.

Hal has a close working relationship on labor and employment law issues with many of the national trade associations in Washington. He currently serves as the chairman of the U.S. Chamber's Subcommittee on International Perspectives and as a member of its Labor Relations Committee. He also serves on the Employment Law Advisory Panel of the National Chamber Litigation Center. He is Executive Director of the First Tuesday Group, an organization of thirty national trade associations and professional organizations involved in workplace issues.

He has been appointed for many years as a labor law advisor and member of the U.S. Employer delegation to the Governing Body and annual conferences of the U.N.-sponsored International Labor Organization in Switzerland. He also has served as the Employer Member of the President's Tripartite Advisory Panel on International Labor Standards.  Hal is a Fellow in the College of Labor and Employment Lawyers.