The Ontario Building Code | Assistive Listening Devices
3.8.3.7. Assistive Listening Devices
(1) In buildings of assembly occupancy, all classrooms, auditoria, meeting rooms and theatres with an area of more than 100 m2 and an occupant load of more than 75 shall be equipped with assistive listening systems encompassing the entire seating area.
In Plain Language
Classrooms, auditoria, meeting rooms, and theatres in assembly occupancies larger than 100 square metres with an occupant load over 75 must be equipped with assistive listening systems covering the entire seating area.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.