Formal and informal. The Council's Committee on Public Works and Transportation holds oversight hearings on DDOT policies and programs as required throughout the year, in addition to one annual performance oversight hearing and one annual budget oversight hearing. The DDOT director usually testifies at these hearings. The DDOT director or relevant staff also are invited to testify before the committee when transportation-related legislation is under consideration. DDOT submits legislative proposals through the mayor. DDOT employs dedicated legislative liaisons. Individual councilmembers are in contact with the DDOT director and legislative liaisons on various projects, and committee staff and DDOT staff communicate daily about specific issues.