[en] Spent fuel storage outside of reactor pools, which is licensed by NRC under 10 CFR Part 72 is now dominated by developments in modular dry storage designs for both interim and long-term storage. In response to provisions of the Nuclear Waste Policy Act of 1982, NRC is developing amendments to 10 CFR Part 72: 1) to accommodate licensing of monitored retrievable storage, should it be authorized by Congress; and 2) to develop a site independent or generic rule for dry spent storage in metal casks