This section applies only in Montgomery County. The Montgomery County Board of Education shall adopt a data disaggregation policy that: Applies to any data collection, reports, or internal documentation by the county board; and Includes a category for each racial and ethnic group that constitutes at least 5% of the students enrolled in the Montgomery County public school system that is separate from any other category. The Montgomery County Board of Education shall include the impact on each racial and ethnic group that constitutes at least 5% of the students enrolled in the Montgomery County public school system in any racial disparity comparisons completed by the county board.