Homeschooling has been legal in the U.S. since 1993 but the laws are state-dependent, so before beginning any home education program be sure to check out your state's rules and regulations.
Currently, six states have "high regulations". This means in those states parents are required to send notification of the decision to home-school and produce achievement test scores and/or professional evaluations. In addition, there may be requirements such as state curriculum approval and parental teacher qualification.
Ten states and two U.S. territories have no requirements. And in most states there are moderate to low regulations, which means those states may not necessarily require parental notification, test scores or professional evaluation of the student's progress.