The commissioner of the city's Office of Emergency Management is stepping down.
Joseph Bruno's last day in the position will be next Friday.
The 70-year-old began working in city government under the John Lindsay administration and was appointed to his current role by Mayor Michael Bloomberg in 2004.
His final few months saw major snowstorms that tested the de Blasio administration's disaster response protocols.
Bruno has also served as a judge and as the city's fire commissioner.
City Hall has not said who will be replacing him.