What is an off field yellow card in rugby?

Answer 1

In contrast to yellow cards issued on-field,

an off-field

yellow card may be issued by the Rugby Union Citing Commissioner for foul play incidents that are very close to, but in his opinion do not meet the red card threshold for citings.

Should the player receive another yellow card in the next game, it automatically activates a red card.

It adds to his tally of yellow cards which will lead to disciplinary action should he reach three for the season.