According to 10 CFR 63.202 [Title 10 – Energy; Chapter I -- Nuclear Regulatory Commission; Part 63 -- Disposal Of High-Level Radioactive Wastes In A Geologic Repository At Yucca Mountain, Nevada; Subpart K -- Preclosure Public Health And Environmental Standards], Yucca Mountain repository means “the excavated portion of the facility constructed underground within the Yucca Mountain site.”
Yucca Mountain site means:
(1) The site recommended by the Secretary of DOE to the President under section 112(b)(1)(B) of the Nuclear Waste Policy Act of 1982 (42 U.S.C. 10132(b)(1)(B)) on May 27, 1986; or
(2) The area under the control of DOE for the use of Yucca Mountain activities at the time of licensing, if the site designated under the Nuclear Waste Policy Act is amended by Congress prior to the time of licensing.