NEW YORK (PIX11) — A New York Supreme Court Justice granted a hearing that could lead to a restraining order against New York City’s vaccine mandate for municipal workers. The mandate currently encompasses all employees of the city, including firefighters and police officers.

According to documents filed Tuesday, the hearing—granted by Judge Frank Nervo—will determine whether a temporary restraining order on the mandate is warranted. A spokesperson for New York City Mayor Bill de Blasio emphatically refuted a tweet from someone who claimed the mandate had been temporarily blocked:

City officials listed in the complaint include Mayor Bill de Blasio, Health Commissioner Dave Chokshi, NYPD Commissioner Dermot Shea, the city, and the city’s Board of Health. Officials tasked with arguing in favor of the mandate’s continued enforcement have until Dec. 13 to respond to Nervo’s filing.

The hearing is scheduled for December 14. It does not concern the city’s vaccine mandate for private-sector workers.