California school officials say new income-verification rules could cost districts millions in funding for low-income students.
The Los Angeles Times says hundreds of families have yet to turn in verification forms in Los Angeles, San Diego, Fresno and elsewhere.
Many districts are urging the state to guarantee them all funding due this year, based on last year's count of low-income students.
Under the new rules, districts are receiving extra money for students who are low income, learning English or in foster care. The additional funding amounts to about $2,800 per pupil in the Los Angeles Unified School District.
State officials say the rules are necessary to ensure the extra dollars go to those who actually qualify for them.
Districts argue that verifying incomes every year is too time-consuming.