4. An enclosure must
(1) prevent the passage of a spherical object 10 cm in diameter;
(2) be at least 1.2 m in height;
(3) have no fixture, projection or open parts enabling it to be climbed.
Where the enclosure is a chain-link fence, the mesh must have a maximum width of 30 mm. If slats are inserted in the mesh, their width may be greater than 30 mm but they must not allow the passage of a spherical object more than 30 mm in diameter.
A wall forming part of an enclosure must not have any opening enabling to enter the enclosure. Despite the foregoing, such a wall may have a window if the window is situated at a minimum height of 3 m from the ground on the inside of the enclosure, or, otherwise, if its maximum opening does not allow the passage of a spherical object more than 10 cm in diameter.
A hedge or bushes may not constitute an enclosure.
O.C. 515-2010, s. 4; O.C. 662-2021, s. 111.