Kammala wannan jumlar: An kafa NRA daga Hukumar Tsaro ta Nukiliya, wacce ta kasance a ƙarƙashin ikon majalisar ministoci, da Hukumar Tsaro ta Nukiliya da Masana'antu, wacce ke ƙarƙashin Ma'aikatar Tattalin Arziki, Kasuwanci da Masana'antu (METI). Bayan bala'in nukiliya na Fukushima bayan da
A ranar 11 ga Maris, 2011, girgizar kasa, an ga matakan tsaro na gwamnati ba su dace ba. Har ila yau, NISA, kasancewa a karkashin inuwar METI, wanda kuma ke da alhakin inganta amfani da makamashin nukiliya, an ga yana da rikice-rikice na sha'awa. Sakamakon haka, an kafa sabuwar hukumar a karkashin Ma'aikatar Muhalli.