A federal appeals court has struck down the Federal Communications Commission’s net neutrality rules, which prevented internet service providers from throttling, blocking or charging more for certain content. Net neutrality rules, which proponents say are critical to maintaining an open internet, were reinstated last year by the Biden administration after they were gutted by Trump’s FCC chair, Ajit Pai, in 2018.

But the 6th Circuit Court of Appeals ruled Thursday the FCC lacked authority to regulate broadband internet as a utility, citing the Supreme Court’s overturning in June of the Chevron doctrine, a 40-year-old legal precedent that gave deference to government agencies over lower courts in interpreting laws and imposing regulations. Digital rights groups and FCC Chair Jessica Rosenworcel are urging lawmakers to take action to restore net neutrality through congressional action.