Much of the correspondence in this series is between members of ECTC and local politicians about highway legislation. Correspondents include public officials such as Walter Washington, Senator Joe Tydings, President Lyndon Johnson, Senator Paul Sarbanes, and Walter Tobriner, President of the Board of D.C. Commissioners (1964). The series also contains some reports, clippings, and legislative materials related to the correspondence. The correspondence is arranged chronologically.