; or (B) authorized to be appropriated or otherwise made available for any fiscal year before fiscal year 2021 and available for obligation as of the date of the enactment of the National Defense Authorization Act for Fiscal Year 2021. (3) Notification described (A) In general A notification described in this paragraph with respect to a proposal to conduct explosive nuclear testing shall include— (i) a description of the testing proposed to be conducted; (ii) a statement of the reasons for conducting the testing, including— (I) whether or not there is a technical need for conducting the testing; (II) if there is a technical need for conducting the testing— (aa) a description of the technical need; (bb) an assessment of alternative options for addressing the need; and (cc) an explanation of why those options were not selected; and (III) if the reason for conducting the testing is in response to a geopolitical event under the responsibility of the President acting as the Commander in Chief of the Armed Forces, a detailed explanation of why the testing would be in the supreme national interest of the United States; (iii) an estimate of the timelines and costs of conducting the testing