Each player is required to have a convention card filled out legibly and on the table throughout a session. Both cards of a partnership must be identical and include the first and last names of each member of the partnership.
There are penalities prescribed by the ACBL. If a Director determines that neither player has a substantially completed card, the partnership may play only the Standard American Yellow Card and may only use standard carding. Further, the partnership will receive a 1/6 board matchpoint penalty for each board played without completed convention cards.
The objective of these warnings and penalties is the encouragement of full compliance with ACBL regulations.