; and (2) the number of eligible Indian students served or potentially served by the contracting party, as determined by the Secretary in accordance with subsection (c). (c) Determination of the number of eligible Indian students (1) Initial determinations for existing contracting parties (A) In general The Secretary shall make an initial determination of the number of eligible Indian students served by each existing contracting party in accordance with subparagraph (B). (B) Process for making the initial determination (i) Preliminary report Not later than 180 days after the date of enactment of the JOM Modernization Act, the Secretary shall publish a preliminary report describing the number of eligible Indian students served by each existing contracting party, using the most applicable and accurate data (as determined by the Secretary in consultation with existing contracting parties) from the fiscal year preceding the fiscal year for which the initial determination is to be made from— (I) the Bureau of the Census; (II) the National Center for Education Statistics; or (III) the Office of Indian Education of the Department of Education. (ii) Data evaluation (I) In general After publishing the preliminary report under clause (i), the Secretary shall evaluate the accuracy of the findings contained in such report. (II) Consultation To inform the evaluation described in subclause (I), the Secretary shall establish a 60-day comment period to gain feedback about the preliminary report from existing contracting parties. (III) Data reconciliation To evaluate the accuracy of the preliminary report and through the consultation process required under subclause (II), the Secretary shall reconcile the data described in the preliminary report with— (aa) the existing contracting party’s data regarding the number of eligible Indian students served by that existing contracting party for the fiscal year preceding the fiscal year for which the initial determination is made