The Department of Education is moving on in its goal to remove all PCB light fixtures from public schools by the end of 2016.
The deadline is part of a settlement between the city and "New York Communities for Change," who filed a lawsuit in 2011.
So far, the city says it has completed lighting replacement projects in 132 school buildings, and will begin work in 77 buildings this fall and 87 buildings next spring.
The work will take place on weekends in order not to disrupt school and after-school programs.
PCBs were banned in the 1970s after it was found that exposure affects the nervous and immune systems, but the DOE says studies show there is no immediate health concern for students.