Fire ratings are granted by third-party testing agencies and are labeled on the products. • The doors must meet the requirements of the International Building and International Fire Codes, as well as NFPA 80. • Building codes dictate the fire rating requirements for the wall. This is based on the location of the wall, building use, and more. The fire rating of the wall dictates the required fire rating of the door. • Fire doors are required to be self closing and positive latching.