The ceremonies marking Crown Prince Naruhito's enthronement will be different from the ones his father experienced when he took the throne.
A big change this time is that two key ceremonies will happen this fall -- the same year as the enthronement.
Last time, both were staged nearly two years later because the succession occurred when Emperor Showa died.
The country was in a period of mourning and officials needed time to prepare for the ceremonies.
One of the ceremonies is the "Sokuirei-Seiden-no-gi" -- in which the new Emperor announces his enthronement and is celebrated.
The other is the ritual of the "Daijosai" or the Great Thanksgiving Ceremony.
That's when the new Emperor offers freshly harvested rice to the deities, and eats some to pray for the well-being of Japan and its people.
The two events will take place 22 days apart, compared to nine days last time.
The Imperial Household Agency wanted to take into consideration the burden the ceremonies would have on the new Emperor and the Empress.
Court banquets will also be simplified.
Last time there were seven -- four days in a row -- with 3,400 people invited.
This time, four will be held. The number of guests will be reduced to around 2,600.