The information presented in this EIA has demonstrated that the design of a repository for disposal of radioactive wastes at Yucca Mountain has evolved without having been affected by the EPA standards. The standards have been demonstrated to have no impact on repository program costs, and nominal performance for the current repository design would result in no radiation doses for more than 10,000 years. Additionally, the difference between a 25 mrem/yr dose standard and a 15 mrem/yr standard is insignificant to program costs and performance evaluations.