Every elected and appointed official of the Town of Kennebunkport and every member of the Zoning Board of Appeals, Planning Board, Board of Assessment Review and Budget Board shall, before entering upon the duties of his office, take and subscribe to the following oath or affirmation, to be filed and kept in the office of the Town Clerk: "I solemnly swear (or affirm) that I will support the Constitution and will obey the laws of the United States and of the State of Maine; that I will, in all respects, observe the provisions of the ordinances of the Town of Kennebunkport and the statutes of the State of Maine and will fully discharge the duties of __________."