P-9.3, r. 1 - Pesticides Management Code

Full text
71. A person who applies pesticides as described in a Subclass C4, C5, D4 or D5 permit must, after any pesticide application on a lawn or a paved surface or on trees or ornamental or decorative bushes, post a sign at all points of access to the treated area if the area is fenced or otherwise delimited.
If the treated area is not fenced or otherwise delimited or is only partly so, a sign must be posted every 20 linear metres along the perimeter of the area.
Those requirements do not apply to a person carrying out a pesticide application on a golf course or a pesticide injection into ornamental or decorative plants.
O.C. 331-2003, s. 71.