Cook & Boardman, LLC dba National Millwork is a recognized member of Intertek's Certified Machiner Program, allowing them to modify Intertek Certified Fire Doors and Frames as detailed within the applicable Intertek specification listings. Cook & Boardman, LLC dba National Millwork's site at 1715 Meathe Dr., West Palm Beach, FL 33411 is subject to routine inspections to verify that modifications to Intertek Certified Fire Doors and Frames are done in compliance with the requirements of the Intertek specification listings.