S-13.1, r. 3 - By-law respecting casino games

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6. Each deck of cards used for a casino game must contain 52 cards, unless the rules of a game require a different number of cards. Each card must have the same form and size as the other ones used at the table. The back of each card must be identical to the others and shall not bear any mark, any symbol or any sign that can, in any way, differentiate it from the backs of the other cards. Moreover, the back of a card cannot allow a person to see what is printed on its front.
O.C. 1253-93, s. 6; O.C. 1033-2007, s. 2.