The Common Council may, after public notice and hearing, amend or repeal the regulations or districts established by this chapter or appurtenant Zoning Map either on its own motion or on petition by owners of property in accordance with provisions of Article 5-A, § 83, of the General City Law of the State of New York.

All such petitions shall be addressed to the Common Council and shall be filed with the City Clerk who shall forward them to the Common Council.

The Common Council shall transmit a copy of each proposed zoning change to the Planning Board with the request that its advisory opinion on such proposed change be submitted to the Common Council.

The Planning Board may petition the Common Council for changes in this chapter or appurtenant Zoning Map, which proposed changes shall be given public notice and hearing and voted upon by the Common Council.

The Planning Board shall submit its advisory opinion, in writing, to the Common Council.

If the Planning Board does not submit such written advisory opinion to the Common Council within 45 days after the date of referral, the Common Council shall consider such change or amendment to be favorable to the Planning Board.

A public hearing shall be called by the Common Council relative to any proposed change in this chapter or appurtenant Zoning Map before it shall vote upon such change.

The Common Council shall have published a notice of any public hearing to amend the text or schedules of this chapter or appurtenant Zoning Map in a newspaper of general circulation in the City at least 10 days prior to the date set for such hearing. Such notice shall describe the area, regulations or requirements of the proposed amendment.

The Common Council shall have a copy of such notice served or posted by registered mail to the Clerk of any town whose boundaries are within 500 feet of property affected by the proposed amendment and shall similarly notify the County Planning Department. Within seven days of the final action on such amendments, the City Clerk shall notify the County Planning Department of the Council's action.

All property owners within a 100-foot radius of and within a proposed zone change area shall be notified of the public hearing, in writing, by first class mail, said notice to be mailed by the City Clerk's office at least five days prior to said hearing.