About the Author

John Grubbs, MBA, RPIH, CSIT, is the principal consultant and owner of GCI, a full service training and consulting firm in Longview, Texas. He is a Registered Professional Industrial Hygienist and a Certified Senior Industrial Technologist. Sean Nelson, CIT, RPIH, is a Technical Consultant for the Liberty Mutual Insurance Group, National Market Loss Prevention team responsible to a large dedicated client for the North Texas District of the Southwest Region. Sean is a Certified Industrial Technologist and a Registered Professional Industrial Hygienist.