In 1991, Minnesota enacted legislation that enabled charter schools. Other states followed. The state or its delegate issues a charter to a school. In most states, the charter-holder has the privileges and responsibilities of a school board, but not the taxing authority. Many states have adopted laws that require that the holder of the school charter be a non-profit organization. As a result, the most common form of a charter management organization is a
501(c)(3) non-profit organization. The charter holder may contract all aspects of school operation to an education management organization. The EMO accepts the full amount of state subsidy per student. If it can operate at a lower cost, the difference is profit for the EMO. The school may advertise that it is a non-profit, which it is, even if there is a for-profit entity operating in the background. ==For-profit EMOs==