The marker reads: "Dealey Plaza has been designated a National Historic Landmark. This site possesses national significance in commemorating the history of the United States of America. 1993. National Park Service. United States Department of the Interior."

On November 22, 1993 - the 30th anniversary of the Kennedy assassination - a formal dedication ceremony was held in Dealey Plaza, in which it was declared a National Historic Landmark. Nellie Connally, the only surviving passenger of the limousine in which JFK was riding on that fateful day in 1963, unvealed this marker, which is inset at the base of the "Grassy Knoll" and almost immediately in front of the spot on Elm Street where the limousine was passing when President Kennedy was struck by an assassin's bullet.

Visitors often place flowers, flags, and other mementoes here, especially on or around the anniversary of the assassination.