The Ontario Building Code | Determination of Ratings
22.214.171.124. Determination of Ratings
(1) Except as permitted by Sentence (2) and Article 126.96.36.199., the rating of a material, assembly of materials or a structural member that is required to have a fire-resistance rating, shall be determined on the basis of the results of tests conducted in conformance with CAN/ulc-S101, "Fire Endurance Tests of building Construction and Materials".
(2) A material, assembly of materials or a structural member is permitted to be assigned a fire-resistance ratingon the basis of MMAH Supplementary Standard SB-2, "Fire Performance Ratings".