According to a report by Kyodo News on August 14, its investigation revealed that after the law relating to Japan's “sub-capital” concept officially became law, seven prefectures have begun studying applications to become sub-capitals. The law relating to the “sub-capital” concept aims to disperse the functions of the capital in the event of a large-scale disaster and mitigate the problem of excessive concentration of the economy in the metropolitan area. The report pointed out that there are also quite a few local governments that have reservations about establishing sub-capitals on the grounds that the designation conditions are “unclear.” The law also stipulates the establishment of a “capital central function replacement area”, which is different from the sub-capital, to share part of the capital's functions in the event of a disaster in Tokyo.

According to a report by Kyodo News on August 14, its investigation revealed that after the law relating to Japan's “sub-capital” concept officially became law, seven prefectures have begun studying applications to become sub-capitals. The law relating to the “sub-capital” concept aims to disperse the functions of the capital in the event of a large-scale disaster and mitigate the problem of excessive concentration of the economy in the metropolitan area. The report pointed out that there are also quite a few local governments that have reservations about establishing sub-capitals on the grounds that the designation conditions are “unclear.” The law also stipulates the establishment of a “capital central function replacement area”, which is different from the sub-capital, to share part of the capital's functions in the event of a disaster in Tokyo.