LOS ANGELES (AP) — The Los Angeles Unified School District says 43 campuses are eligible for Public School Choice reform, meaning nonprofits, charter operators and teachers can apply to run underachieving or new campuses.

The nation’s second-largest school district announced Tuesday that round three of Public School Choice, the cornerstone of Los Angeles reform, makes 26 existing schools and 17 new campuses open to the bidding process. That compares to 12 in round two and 36 in round one.

The Los Angeles Daily News says the large number of eligible schools in round three concerns union leaders. The teachers union has been critical the reform effort, saying it’s a giveaway of public schools.

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