; (B) increase compensation for public defenders or panel attorneys to achieve pay parity with corresponding prosecutor's offices; (C) hire case workers, social workers, investigators, or paralegals; or (D) establish or fund a loan assistance program for public defenders. (4) Supplement, not supplant An eligible entity may not use a hiring grant to supplant funds that the eligible entity would otherwise have used for any authorized purpose described in paragraph (3) during the grant period. (5) Required data collection During each fiscal year of the grant period, an eligible entity that receives a hiring grant shall collect the data described in subsection (b)(2). (d) Submission requirement Not later than 60 days after the end of a fiscal year, an eligible entity that receives a data grant or hiring grant shall submit to the Attorney General the data described in subsection (b)(2) for that fiscal year. (e) Multiple defendants If a prosecutor’s charging document states that multiple defendants were involved in a single incident of alleged criminal or delinquent conduct, each defendant shall be considered a separate case for purposes of the collection of data described in subsection (b)(2). (f) Authorization of appropriations There are authorized to be appropriated to the Attorney General to carry out this section— (1) $250,000,000 for each of the first 5 fiscal years beginning after the date of enactment of this Act; and (2) such sums as may be necessary for each fiscal year thereafter. 5. Studies (a) Studies (1) Caseload limits study (A) In general After the end of the first fiscal year for which data grants are awarded, the Attorney General, acting through the Director of the Bureau of Justice Assistance and the Director of the Office for Access to Justice, shall— (i) conduct a study to analyze the data submitted to the Attorney General under section 4(d) for that fiscal year related to public defender and panel attorney caseloads and correlated outcomes