Yoma 7a and Yoma 7b, linking the issue of tumah hutrah or hudhah be-tzibbur, whether ritual impurity can be completely ignored or is just pushed aside for communal offerings with a certain time attached to them, to the question of whether the tzitz, the High Priest’s forehead plate, provides appeasement for certain problems with sacrifices only when on the High Priest’s forehead, or even not.
