The Canister Storage Building plays an important role as an interim storage facility in Hanford’s cleanup mission. The CSB is a 42,000-square-foot facility in Hanford’s 200 East Area that stores over 400 2-foot by 14-foot stainless steel tubes called multicanister overpacks, containing approximately 2,300 tons of irradiated fuel that came from several Hanford facilities. The irradiated fuel was cleaned, packaged, dried, and relocated to the CSB to provide safe interim storage in a single location.