The Mayor of Gretna has general and immediate control over all property, and officials, whether elected or appointed, of the city. He presides at all meetings of the City Council and may vote when the mayor's vote is needed to break a tie vote of the council. The mayor has the authority to call the Council into special meetings and is required to sign all ordinance, resolutions, and City Council minutes. The mayor may veto any ordinance, resolutions, or order adopted by the City Council.
He may, with the consent of the City Council, appoint officers for the positions of city attorney, city auditor, city clerk / treasurer, city engineer, city fire chief, city street superintendent, city utilities superintendent, and city zoning administrator / building inspector. He also appoints liaisons and various board members as terms expire.