After the largest coronavirus spike New York City has seen since June, Mayor Bill de Blasio said Tuesday that he will implement fines for city-goers who refuse to wear face coverings.

And he’s not messing around.

If you’re caught without a mask, the according fines could be as high as $1000, according to NPR.

City personnel will hand out free masks to anyone who is not wearing a face covering, the mayor said.

“Anyone who refuses to wear a face-covering will be told that if they don’t put one on, they will be fined,” de Blasio said. The new implementation will be effective immediately and on a large scale.

“Our goal, of course, is to give everyone a free face mask and get them to wear it. We don’t want to fine people,” said de Blasio.

While the city is seeing a tremendous increase in cases throughout its entirety, the main uptick is occurring primarily in nine zip codes in Brooklyn and Queens, including areas with tight-knit Orthodox Jewish Communities. Health officials are emphasizing outreach to these communities, according to NPR.

The cases in these nine zip codes account for 25% of the city’s overall cases, even though they only host seven percent of the overall city’s population, according to New York City’s health commissioner Dave Chokshi. This concentration will become a key focus in efforts to decrease the transmission of the disease.

To enforce this new mandate, every agency in the city will play a role, according to the mayor, including the Sheriff’s Office and the New York Police Department.