for all state universities, and I have every reason to expect that an explicit quota would be found illegal for a private university under the general federal civil rights statute enforced by the Department of Education. But colleges appear to have suspiciously consistent numbers from year to year without admitting to having quotas.
Actually, quotas are strictly against the law under the Bakke decision
http://www.oyez.org/cases/1970-1979/1977/1977_76_811/
for all state universities, and I have every reason to expect that an explicit quota would be found illegal for a private university under the general federal civil rights statute enforced by the Department of Education. But colleges appear to have suspiciously consistent numbers from year to year without admitting to having quotas.
See
http://talk.collegeconfidential.com/1063172559-post8.html
for examples of colleges with large numbers of students officially reported to the federal government as "race unknown."