10.4.1.1.Substitution

(1) Except as provided in Sentence (3), a compliance alternative to a requirement contained in Part 3, 4, 6 or 8 that is
     shown in Tables 11.5.1.1.-A, 11.5.1.1.-B, 11.5.1.1.-C, 11.5.1.1.-D/E or 11.5.1.1.-F may be substituted for the requirement
     where the chief building official is satisfied that compliance with the requirement is impracticable because,
     (a) of structural or construction difficulties, or
     (b) it is detrimental to the preservation of a heritage building.

     (2) Except as provided in Sentence (3), a compliance alternative to a requirement contained in Part 9 or 12 shown in
     Tables 11.5.1.1.-C, 11.5.1.1.-D/E or 11.5.1.1.-F may be substituted for the requirement without satisfying the chief
     building official that the requirement is impracticable.

     (3) Where the building has been in existence for less than five years, compliance alternatives may only be used in
     respect of requirements of this Division that are referenced in Sentences 10.3.2.2.(3), (5) and Table 10.3.2.2.-B.

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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.