Ottawa : Règlement no 2017-301, art. 16(7) — Traffic and Parking By-law

The provisions of subsection (6) shall not come into effect:

• (a) until the General Manager of Public Works and Environmental Services has received a report from the Environment Canada Atmospheric Environment Service or the City’s Weather Consultant which forecasts an accumulation of snow of seven (7) centimetres or more, or a range of accumulation of snow which includes seven (7) centimetres or more; or
• (b) unless, in the opinion of the General Manager of Public Works and Environmental Services, extreme, inclement, or unusual weather, or other conditions, warrant it based on information available to the General Manager.