Naruhito, like his father nearly three decades ago, will wear the traditional robe and headdress at the ceremony, which will begin at 13: 00 (0400 GMT) in the matsu Palace of the Imperial Palace no ma, or pine Hall, the most prestigious space in the Palace.

About 16.1 billion yen ($148 million) was allocated for succession-related ceremonies during the year, including the enthronement ceremony.

Abe said that representatives of more than 190 countries and international organizations will join the celebration.

Guests include Britain’s Prince Charles, who along with Princess Diana also attended Akihito’s enthronement ceremony, China’s Vice President Wang Qishan, the Republic of Korea’s Prime Minister Lee NAK-Yong and Elaine Chao, the United States Secretary of transportation.

Domestic media reported that Saudi crown Prince Mohammed bin Salman, the Kingdom’s de facto ruler, and Turkish President Tayyip Erdogan will also attend, and Abe will then hold talks with 50 foreign leaders.

About 120,000 people, many waving national flags, lined the route to cheer on Akihito and Empress Michiko as they passed by in a Rolls-Royce Corniche III after its enthronement.

Naruhito and Masako will hold a tea party for foreign royalties the next day to Express their gratitude.

Then in the Evening, Abe will hold a Banquet for about 900 foreign leaders and other members of the delegation at Tokyo’s New Otani hotel. 

The Asahi Shimbun newspaper reported Wednesday that the government had told the ruling liberal democratic party that it planned to pardon about 550,000 people to mark Naruhito’s enthronement.

Another newspaper, the Mainichi Daily, said earlier this month the planned pardon is aimed at petty criminals and they will have restrictions on their legal rights lifted.

In Japan, convicted and fined persons are prohibited from obtaining licenses of doctors, nurses and some other persons for five years.