The Ontario Building Code | Building in Flood Plains
184.108.40.206. building in Flood Plains
(1) Buildings constructed on flood plains shall,
(a) be designed and constructed in accordance with good engineering practice to withstand anticipated vertical and horizontal hydrostatic pressures acting on the structure, and
(b) incorporate floodproofing measures that will preserve the integrity of exits and means of egress during times of flooding.
3.1.2. Classification of Buildings or Parts of Buildings by Major Occupancy