Instructors who also teach at private colleges or colleges under separate governing boards, such as the University of Virginia Board of Visitors, would be allowed to exceed the maximums. UVa part-timers have been limited to 29 hours a week since 1993 and likely won't be noticeably affected, said school spokesman McGregor McCance. “We are subject to the new language in the [state’s] appropriations act, but because we have had this existing policy, it has little impact on our operations,” he said.