A Japan Atomic Energy Agency research reactor cleared a regulatory safety review on Wednesday, becoming the first facility run by the government-affiliated research institute to pass post-Fukushima regulations.

The reactor, which is located in Ibaraki Prefecture and called the Static Experiment Critical Facility, gained approval from the Nuclear Regulation Authority to resume operations and will be used to conduct research on the extraction of melted fuel from nuclear plants.

The facility still needs to go through several final checks under new rules introduced after the Fukushima nuclear disaster in 2011.