The Ontario Building Code | Exceptions
(1) The following signs shall not be subject to the provisions of this Section,
(a) signs for regulating traffic or similar devices, legal notices or warnings at railroad crossings,
(c) small signs displayed for the direction of the public including signs that identify rest rooms, freight entrances and such other similar directional signs,
(d) signs painted directly on a building, and
(e) incidental signs or other signs subject to municipal approval.