[en] The JAEA is currently constructing the Okuma Analysis and Research Center near the TEPCO's Fukushima Daiichi Nuclear Power Station site based on the Japanese Government's 'Mid-and-Long-Term Roadmap'. The Okuma Analysis and Research Center consists of three buildings; Administrative building, Laboratory-1 and Laboratory-2. The hot laboratories; Laboratory-1 and Laboratory-2 handle and analyze the radioactive samples from 1F site. Laboratory-1 is for radioactive analysis of low and medium level radioactive rubbles and secondary wastes. The construction began in April 2017 and plans an operational start in the spring of 2020. Laboratory-2 is planned for the radioactive analysis, mechanical and physical and chemical characterization, of fuels debris and high-level radioactive rubbles and secondary wastes. The detail design began in summer of 2016. Radioactive analysis in the hot laboratories will provide the data needed to establish the strategy and methodology for treatment and disposal of radioactive rubbles, and for the removal methods of fuel debris in the reactors. Laboratory-1 and Laboratory-2 are designed with reference to a generally accepted knowledge base on design of post-irradiated examination (PIE) facilities with enhancements that are discussed below. (author)