National Mah Jongg Card 2025 Rules. For american style mah jongg, using nmjl rules, our 17th annual card offers clever combinations, and challenging hands that feature the year of the snake theme. For sale through january 31, 2025,.

When playing american mah jongg, players use a card issued by the national mah jongg league. Some changes are codifications of how the previous rule had already been interpreted;