Mayor Bill de Blasio and Fire Commissioner Daniel Nigro swore in a new class of probationary firefighters Monday.
The class is considered one of the most diverse, as more than one-third of the recruits are either women, black, Hispanic or Asian.
The newly sworn in female probies make the number of women actively serving the highest number in New York City Fire Department history.
Fifty members of the class are also veterans.
"This is a class that reflects all of New York City, all the neighborhoods, all the backgrounds of people, and that will make this class strong in the ability to reach and serve every kind of New Yorker," de Blasio said.
"The boots of heroes are difficult to fill," Nigro said. "Do not take this swearing in lightly. I swear, I promise, I fully commit. It is not to a 40-hour week until you retire. It's 24 hours a day, seven days a week, forever."
The class will prep for duty during a rigorous 18-week span at the FDNY Training Academy on Randall's Island.