N.Y.C. Charter § 391: Section 391. Department; corporation counsel; vacancy.

a. There shall be a law department the head of which shall be the corporation counsel.

b. Within 60 days following the occurrence of a vacancy in the office of the corporation counsel, the mayor shall submit to the council the name of the mayor's nominee for corporation counsel. If the council disapproves a nomination while the office of the corporation counsel is vacant, the mayor shall submit a new nomination to the council within 60 days of council disapproval. Each subsequent council disapproval of a mayoral nomination shall begin a new 60-day period. The mayor shall make all reasonable efforts to ensure that the vacancy is filled through the process described in this subdivision within 120 days of the occurrence of the vacancy.