In 2002 state laws regulating home schooling vary widely regarding such matters as teacher licensure, testing, compulsory curriculum, and required paperwork. Some states impose exacting regulations on home schooling, while others legislate few requirements. Nine states place no restrictions on parents' rights to home school, providing the legal option for any parent who is interested. Ten other states simply require parents to notify the state when a child is being home schooled. On the other hand, twenty states demand that parents provide test scores or professional assessment to monitor the student's progress. Finally, eleven states impose stringent requirements that mandate that parents provide the state with test scores or professional assessment to measure the student's achievement, in addition to other requirements such as regular home visits or professional training.