What should be done if a player arrives at bat with a wood bat that has no certification mark?

When a player arrives at bat with a wood bat that has no certification mark, the situation hinges primarily on size and dimension regulations set forth in the rules. A wood bat is typically considered legal as long as it meets the required size and dimension guidelines, regardless of whether it has a certification mark.

This means that if the bat complies with the allowable specifications, it can be used in play, even without a certification. The focus is on the bat’s physical characteristics rather than just its markings. Therefore, as long as the bat adheres to the size regulations, it would be deemed legal for use in the game.

In instances where a bat lacks certification, the other choices involve penalties or automatic illegal designation, which do not apply here if compliance with size standards is maintained. So, the emphasis is on meeting the necessary size criteria instead of merely having the certification mark.