Fire Commissioner Nicholas Scoppetta announced Thursday he will step down at the end of the year, after nearly eight years of running a department devastated by 9/11.
Scoppetta, 76, said he spoke with Mayor Bloomberg in August, expressing his desire to move on and to take up teaching.
"I told him I truly didn't plan on staying...47 years in city government is enough," Scoppetta told the Daily News.
Scoppetta was chief of the city's child welfare agency before Bloomberg tapped him to run the FDNY.
He battled the fire unions and saw the tragedies of the Deutsche Bank building fire and the Black Sunday fire in the Bronx.
He said he also leaves with "the joy of working in the Fire Department...it's not a job, but a daily pleasure, a way of life."