Shihohai (a Shinto ceremony held on New Year's Day in which the Emperor pays respect to the deities in all quarters) and Niiname-sai Festival (ceremonial offering by the Emperor of newly-harvested rice to the deities) are held at the Shinkaden, which is a shrine located near the Kyuchu Sanden, and Chinkon-sai Festival (a ceremony for the repose of a soul) is held at the Ryokiden, which is a shrine also located near the Kyuchu Sanden.
四方拝、新嘗祭は宮中三殿の近くにある神嘉殿で、鎮魂祭は宮中三殿近くの綾綺殿で執り行われる。