Washington, D.C., officials outlined sweeping security preparations on Wednesday for the city’s upcoming events, as it gears up for major celebrations marking the 250th anniversary of the Declaration of Independence. 

July 4, the centerpiece of America 250 festivities, has been designated a National Special Security Event by the Department of Homeland Security, allowing the Secret Service to lead operations, according to district leaders. NSSE is the highest level of security clearance, typically reserved for high-profile events such as the State of the Union address and presidential inaugurations.