Japan has won approval from the International Atomic Energy Agency to work together to ease concerns about the disposal of treated water at the Fukushima Daiichi nuclear power plant.
Industry minister Kajiyama Hiroshi and IAEA Director General Rafael Mariano Grossi discussed the matter in a video conference on Tuesday.
Kajiyama said the final stage of coordination is underway to determine government policy on the disposal.
He also said it has become extremely important to dispel concerns and worries over the safety of the water domestically as well as by Japan's neighboring countries.
Grossi said he is convinced that Japan has all the technological capacities for water disposal and the IAEA will cooperate as a technical and impartial organization.
Wastewater produced by the crippled nuclear plant is stored in tanks in the compound that are set to fill up next year.
It's treated by the Advanced Liquid Processing System, or ALPS, to remove most of the radioactive materials, but still contains radioactive tritium.
A government panel has suggested that practical ways for disposal are to release the water into the sea or the air after diluting it to acceptable levels below national regulations.
Once the government decides on how to dispose of the water, the IAEA plans to observe the disposal and monitoring methods continuously and disclose the results to the international community.