; (ii) the publication of the Office of Science of the Department of Energy titled Four Years Later: An Interim Report on Facilities for the Future of Science: A Twenty-Year Outlook , published August 2007; and (iii) the publication approved by the Basic Energy Sciences Advisory Committee on June 9, 2016, titled Report on Facility Upgrades . (C) Start of operations The Secretary shall, to the maximum extent practicable, ensure that the start of full operations of the upgrade under this paragraph occurs before December 31, 2025. (D) Funding Out of funds authorized to be appropriated under section 11 for Basic Energy Sciences, there shall be made available to the Secretary to carry out the upgrade under this paragraph— (i) $36,000,000 for fiscal year 2018; and (ii) $60,800,000 for fiscal year 2019. (3) Spallation neutron source second target station (A) In general The Secretary shall provide for a second target station for the Spallation Neutron Source. (B) Definition of second target station For the purposes of this paragraph, the term second target station means the Spallation Neutron Source second target station described in— (i) the publication of the Office of Science of the Department of Energy titled Facilities for the Future of Science: A Twenty-Year Outlook , published December 2003; (ii) the publication of the Office of Science of the Department of Energy titled Four Years Later: An Interim Report on Facilities for the Future of Science: A Twenty-Year Outlook , published August 2007