(a) Establishment The Secretary shall construct and operate a Facility for Rare Isotope Beams. The Secretary shall commence construction no later than September 30, 2008 . (b) Authorization of appropriations There are authorized to be appropriated to the Secretary such sums as may be necessary to carry out this section. The Secretary shall not spend more than $1,100,000,000 in Federal funds for all activities associated with the Facility for Rare Isotope Beams, prior to operation of the Accelerator. ( Pub. L. 109–58, title IX, § 981 , Aug. 8, 2005 , 119 Stat. 907 ; Pub. L. 115–246, title III, § 308(b) , Sept. 28, 2018 , 132 Stat. 3150 .) Editorial Notes Amendments 2018— Pub. L. 115–246 substituted “Facility for Rare Isotope Beams” for “Rare Isotope Accelerator” in section catchline and in subsecs. (a) and (b).