Toronto : Règlement no 629, art. (c) — Chapter 629 Property Standards

Except as provided in Subsection D(4)(d), in dwelling units, any window located more than 2,000 millimetres above grade that opens within 1,500 millimetres of the floor shall be protected:

• [1] By a guard conforming to Subsection D(5);
• [2] By: [a] A controlled sash operation to restrict, when engaged, the opening of the operable sash to not more than 100 millimetres;
• and [b] A heavy-duty screen conforming to CAN/CSA A440, "Windows";
• or [3] By an alternative device that does not reduce the degree of safety provided by Subsection D(4)(c)[1] or [2].