When originally introduced, students in fourth grade were required to pass the reading portion of the test in order to be promoted to the fifth grade. After passage of the no child left behind programby the United States Congressin 2001, the mandatory passage was moved from fourth grade down to third grade, so as to align Florida with federal statutory requirements. In addition to the third grade requirement, public school students in Florida must also pass the tenth grade FCAT, not only in reading, but also in mathematics, in order to be eligible to receive a high school diploma. Grade 3 and graduation are the only two instances in which federal or state statute require passage of the FCAT; it is given at the other grades for the intention of providing diagnostic information, both on students and schools. However, many counties in the state have adopted other promotional requirements tied to the FCAT, but these are at the discretion of each individual county school board.