MADISON, Wis. (AP) — Attorney General J.B. Van Hollen says high school students who take University of Wisconsin classes offered in their schools for college credit can’t be charged tuition. Van Hollen said in the opinion released Thursday that state law requires the state Department of Public Instruction to determine who pays for the classes. The state budget allowed high school students to enroll in up to two courses from qualified higher educational institutions at a time, with school districts picking up the cost. But in May, UW announced it would cover the roughly $1 million tuition cost for one year. John Johnson, a spokesman for DPI, says going forward UW needs to work with school districts to come up with a way to pay for the classes that is cost-neutral for both.