President Donald Trump announced steps toward creating a national school voucher program during his speech to Congress on Tuesday night.

“I am calling upon members of both parties to pass an education bill that funds school choice for disadvantaged youth, including millions of African American and Latino children,” Trump said. “These families should be free to choose the public, private, charter, magnet, religious or home school that is right for them.”

Trump didn’t provide details, but experts have said that the most likely way to do this at a national level would be through a tax credit program.

Tax credit programs allow people and corporations to allocate some of their tax money to nonprofits that administer scholarships, and student recipients can choose from a list of private schools. The nonprofits then cover the students’ tuition or school expenses. According to the National Conference on State Legislatures, 17 states currently have such programs.

But if his choice in guests is any indication, his model could be Florida. In Florida, corporations can allocate up to 75 percent of their income tax toward scholarship programs, and most students eligible for free or reduced-price lunch qualify.

Next page: What studies show about Florida’s tax credit program