Douglas Thornburg, AIA, CBO., is the Vice President and Technical Director of Products and Services at the International Code Council (ICC), where he provides leadership in the technical content development of ICC publications and educational s programs as well as instruction of ICC building code seminars. Prior to joining the ICC in 2004, he served as a code consultant and educator for building codes. He has been involved extensively in building code activities since 1980.

Chris Kimball, SE, MCP, is the founder of Kimball Engineering and the Utah Regional Manager at West Coast Code Consultants, Inc. A practicing structural engineer, he holds ICC certifications as a plans examiner, commercial inspector, residential inspector, residential plans examiner, and fire plans examiner/inspector. Chris is an instructor of ICC building code seminars.

William C. Bracken, PE, CFM, is the founder and CEO of Bracken Engineering. His practice specializes in structural, building envelope, general civil, floodplain, construction, building applications, and forensic engineering projects as well as Urban Search and Rescue responses. Bill is an instructor of ICC Disaster Response Institute and building code seminars.