 The major airports currently serving the Laurel area are Baltimore-Washington International Thurgood Marshall Airport in adjacent Anne Arundel County, and Ronald Reagan Washington National Airport in Arlington, Virginia near downtown Washington, D.C..The Laurel Police Department and the Prince George's County Police Department are the principal providers of the region's police officers.The Maryland State Police patrol US 1, MD 198, and Interstate 95, which pass through the area, and the United States Park Police patrol the Baltimore-Washington Parkway and its connectors.