Period of Geologic Stability [Energy] Law and Legal Definition

According to 10 CFR 63.302 [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 L -- Postclosure Public Health and Environmental Standards], the term period of geologic stability means “the time during which the variability of geologic characteristics and their future behavior in and around the Yucca Mountain site can be bounded, that is, they can be projected within a reasonable range of possibilities. This period is defined to end at 1 million years after disposal.”