Christopher Walker joined Keller and Heckman in 2008 as the firm's OSHA Regulatory Specialist. Mr. Walker is a Certified Industrial Hygienist and Certified Safety Professional with more than 12 years of experience in the areas of industrial hygiene, safety and environmental compliance. Mr. Walker has developed and implemented comprehensive environmental, health and safety programs for manufacturing employers and contractors providing base operating services at DOD facilities. Prior to joining Keller and Heckman, Mr. Walker was the Environmental, Safety and Health Manager for a contractor supporting Warrior Care at the Walter Reed Army Medical Center.