§ 4

The commission shall recommend the boundaries of districts and appropriate regulations and restrictions to be enforced therein. Such commission shall make a tentative report and hold a hearing thereon. Notice of such hearing shall be given by publication at least fifteen days before the date of such hearing in a newspaper having circulation in said city. Such notice shall state the time and place of such hearing, and that copies of the proposed ordinance, with the accompanying maps, may be seen at a designating place. Such meeting may be adjourned from time to time. Within thirty days after the final adjournment of such hearing, the commission shall make a report to the board of aldermen of the city and submit a proposed ordinance in accordance with the provisions of this act. Such proposed ordinance may be, by said board of aldermen, referred to the zoning commission for further consideration. All ordinances, when adopted under the provisions of this act, shall be enforced under the authority of an officer to be designated by such ordinance.