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The NMJL does not sanction table rules, including but not limited to hot walls, cold walls, betting, and penalties.
Category - Rules
Protocols, regulations, etc.
The letter "C" to a hand's right indicates one cannot call to expose tiles during the game.
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If two identical tiles are discarded, one right after the other, and someone calls the tile for mah jongg, it is the 2nd discarded tile that can be claimed.
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Zeros are not allowed in consecutive run hands as the runs must start with a one or higher.
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Singles and Pairs' hands' value isn’t doubled if a jokerless since they are already jokerless hands and the value built into them.
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Several situations can make a hand invalid or no longer viable (i.e., dead), too many or too few tiles, picking from the wrong end of the wall, an invalid combination of exposures (including those from a concealed hand).
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A player should not call their hand dead, even if their hand is no longer viable.
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In three-handed mah jongg, the walls are built just as in four-handed mah jongg.
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Discarding a Joker and Naming it the Previously Discarded Tile
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