; and (II) interpret data collected by any chemical screening device purchased using grant funds. (B) Submission Law enforcement agencies submitting a joint application under subparagraph (A) shall— (i) be considered as 1 applicant; and (ii) select the chief law enforcement officer of one of the law enforcement agencies to submit the joint application. (c) Restrictions (1) Supplemental funds Grant funds shall be used to supplement, and not supplant, State, local, and tribal funds made available to any applicant for any of the purposes described in subsection (a). (2) Administrative Costs Not more than 3 percent of any grant made under this section may be used for administrative costs. (d) Reports and records (1) Reports For each year during which grant funds are used, the recipient shall submit to the Attorney General a report containing— (A) a summary of any activity carried out using grant funds; (B) an assessment of whether each activity described in subparagraph (A) is meeting the needs described in subsection (b)(1)(A)(i) that the applicant identified in the application submitted under subsection (b); and (C) any other information relevant to the purpose of this Act that the Attorney General may determine appropriate. (2) Records For the purpose of an audit by the Attorney General of the receipt and use of grant funds, a recipient shall— (A) keep— (i) any record relating to the receipt and use of grant funds; and (ii) any other record as the Attorney General may require; and (B) make the records described in subparagraph (A) available to the Attorney General upon request by the Attorney General. 5. Authorization of appropriations There are authorized to be appropriated to the Attorney General $20,000,000 for fiscal year 2019 to carry out section 4.