The new chairman of the Federal Communications Commission is ordering an investigation into whether NPR and PBS violated government rules by recognizing financial sponsors on the air — a breach that could provide justification for lawmakers to end public funding for the stations.

FCC Commissioner Brendan Carr claims the public broadcasting stations could be violating federal law. Federal Communications Chair Brendan Carr has ordered investigations into NPR and PBS with the goal of slashing the money given to the government-funded organizations, The New York Times reports.

The investigation will revolve around NPR and PBS airing sponsorships across their 1,500-plus member stations, FCC Chairman Brendan Carr said.