1. The Mishnah discusses how the Kohen Gadol was notified that the Se'ir la'Azazel had been pushed off the cliff.
2. The Kohen Gadol would publicly read the Parshah of Yom Kippur from the Torah.
3. There was a special procedure for handing the Sefer Torah to the Kohen Gadol.
4. The Gemara discusses whether it is permitted to derive personal benefit from the priestly garments.
5. The Kohanim were certainly allowed to wear the priestly garments when they ate the meat of Korbanos.
A BIT MORE
1. Tana Kama: They would signal by waving flags from the last lookout booth to the next booth and so on, until it would be seen in Yerushalayim. Rebbi Yishmael: When the people were righteous, everyone in Yerushalayim could see that the crimson string turned white.
2. He was allowed to change out of his priestly garments into his own white cloak.
3. The Sefer Torah would first be given to the assistant who would give it to the person in charge of determining who receives the honors during the services, who in turn would give it to the Segan Kohen Gadol who would then give it to the Kohen Gadol.
4. The question is whether a Kohen is allowed to benefit from the Bigdei Kehunah when he is not performing an Avodah.
5. This is because the eating of the Korban is part of the Avodah of the Korban. The verse implies that the eating of the Korban is part of the way the Korban achieves atonement for its owner.