(a) A candidate for elective municipal office shall file a statement under oath with the City Clerk, at the time of filing a nominating petition and declaration of candidacy, specifying his or her business interests and income sources.

(b) Each municipal officer shall file a statement under oath with the City Clerk, within thirty (30) days after appointment to office specifying his or her business interests and income sources.

(c) Each municipal officer shall file a similar statement of income sources and business interests or shall certify a previously filed statement remains true, correct, and complete with the City Clerk not later than April 15th of each year that he or she holds office.