The Ontario Building Code | Site Assembled and Factory-Built Buildings
188.8.131.52. Site Assembled and Factory-Built buildings
(1) Except as provided in Sentence (2), a manufactured building intended for residential occupancy is deemed to comply with this Code if it is designed and constructed in compliance with,
(a) CSA Z240.2.1, "Structural Requirements for Manufactured Homes", if the building is constructed in sections not wider than 4.88 m, or
(b) CSA A277, "Procedures for Factory Certification of Buildings".
(2) The requirements of this Code shall apply to,
(a) building components designed and constructed outside the place of manufacture, and
(b) site installation of such buildings.