P-42, r. 10.1 - Regulation respecting the safety and welfare of cats and dogs

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25. A restraint such as a chain or a rope that is used to attach an animal outdoors must
(1)  not be liable to get stuck or shortened, in particular by wrapping itself around an object;
(2)  not cause discomfort for the animal, in particular because of its weight;
(3)  allow the animal to move about freely and safely; and
(4)  allow the animal to reach its food and water.
O.C. 1188-2011, s. 25.