Sec. 5-3. - Preparation and submission of budget.

The Mayor, at least forty-five (45) days prior to the beginning of each budget year, shall submit to the Council a budget and an explanatory budget message. For such purpose, at such date as he or she shall determine, he or she, or an officer designated by him or her, shall obtain from the head of each office, department or agency estimates of revenue and expenditure of that office, department or agency, detailed by organization units and character and object of expenditure, and such other supporting data as he or she may request; together with an estimate of all capital projects pending or which such department head believes should be undertaken (a) within the budget year and (b) within the five (5) next succeeding years. In preparing the budget, the Mayor shall review the estimates, shall hold hearings thereon and may revise the estimates, as he or she may deem advisable.