On April 21, the city council of Kashiwazaki City, Niigata Prefecture, voted to approve an ordinance to introduce a progressive tax for the spent nuclear fuel stored at reactors no. 1 through 4 at the Kashiwazaki-Kariwa Nuclear Power Plant. The tax rate will be increased according to the length of the storage period. This tax, designed to encourage storage of the spent fuel outside of Kashiwazaki, will be the first tax of its kind in Japan. Tokyo Electric Power Company Holdings, Inc. has already agreed to the plan. The city will aim to implement the ordinance as early as October 1, 2020, contingent on approval from the Ministry of Internal Affairs and Communications.