A typical program in Milwaukee, pulled up at random, is described here.

Student Participation.

The Choice program permits up to 15% of students residing in the MPS district (approximately 15,100 pupils) to attend any participating private school located within the city. In 2000-01, about 9,600 pupils exercized the Choice option at 103 private schools. Over 60% of Choice participants are African American, which is about the same proportion as the general enrollment in MPS.

Approximately 6,000 Choice students were enrolled in religious schools in 2000-01. Catholic schools accounted for the majority of enrollments, but other Christian, Jewish, and Islamic schools also participated. Under current law, a private school may enroll as many Choice students as it wants. The school must determine admissions on a random basis, except that preference may be given to siblings of pupils already accepted.

Income Eligibility and Voucher Payment.

The total income of a Choice pupil’s family cannot exceed 175% of the poverty level established annually by the federal government. For example, in 2001-02, the income limit for a family of three is $25,655 and for a family of four, $30,913.

Choice tuition checks are sent by the state to the private school but must be endorsed by the pupil’s parent or legal guardian for use by the private school. Private schools must accept, as total payment for tuition, the lesser of: 1) the sum of the amount paid per pupil under the program in the previous school year ($5,326 in 2000-01) and the amount of revenue increase per pupil allowed in the current school year or 2) an amount determined by the Department of Public Instruction (DPI) to be equal to the sum of the school’s per pupil operating costs and any debt service expenses related to educational programming. Private schools are required to submit the results of an independent financial audit to DPI annually.

Standards.

Participating schools must follow all health and safety laws that apply to public schools and must meet at least one of the following standards: 1) at least 70% of the Choice pupils must advance one grade level each year; 2) the average attendance rate for Choice pupils at the school must be at least 90%; 3) at least 80% of the pupils in the program must demonstrate significant academic progress; or 4) at least 70% of the families of Choice pupils must meet the school’s criteria for parental involvement in the child’s schooling. DPI monitors enrollees’ performance and evaluates school compliance with standards.

Nothing here fits the description you have given. Again, I have no idea where you picked that up.