Wis. Stat. § 115.993

Annually, on or before August 15, the school board of a district operating a bilingual-bicultural education program under this subchapter shall report to the state superintendent the number of pupils, including both limited-English proficient pupils and other pupils, instructed the previous school year in bilingual-bicultural education programs, an itemized statement on oath of all disbursements on account of the bilingual-bicultural education program operated during the previous school year and a copy of the estimated budget for that program for the current school year.