a. The agencies existing on the effective date of this section are continued except as otherwise provided in the charter or as otherwise provided by state or local law enacted since that date or by any actions taken by the mayor pursuant to this section since that date. To achieve effective and efficient functioning and management of city government, the mayor may organize or reorganize any agency under his jurisdiction, including the authority to transfer functions from one agency to another; create new agencies; eliminate existing agencies; and consolidate or merge agencies. Any action by the mayor pursuant to this subdivision shall be termed a "reorganization plan" and shall be published in the City Record.
b. In preparing reorganization plans, the mayor shall eliminate, as appropriate, agencies or functions which duplicate or overlap similar agencies of, or functions performed by, other agencies of city, state or local government.
c. If any proposed reorganization plan involves a change of a provision of this charter, except as provided pursuant to subdivision f of this section, or local law now in effect, or otherwise involves reorganization of an agency created pursuant to a resolution of the board of estimate or executive order of the mayor, a copy of the reorganization plan first shall be submitted to the council. Within a period of ninety days from the date of receipt, the council may adopt a resolution that approves or disapproves the reorganization plan. In the event the council takes no action within the ninety-day period, the reorganization plan shall be deemed approved as if the council had taken affirmative action, and is then effective.
d. The text of a reorganization plan approved pursuant to subdivision c of this section shall appear as a part of the administrative code.
e. The mayor may withdraw or modify a reorganization plan submitted to the council before any final action by the council with respect to it.
f. The authority of the mayor pursuant to this section shall not apply (1) to any matter which would otherwise require the submission of a local law for the approval of the electors pursuant to section thirty-seven, or (2) to any board or commission established pursuant to a provision of this charter.