Businesses Learning Resources Inc. and hand2mind Inc. filed a petition with the Supreme Court on Tuesday, attorney Pratik Shah confirmed to Forbes, which asks the high court to consider whether Trump’s “Liberation Day” tariffs are lawful under the International Emergency Economic Powers Act (IEEPA), the law the president used to impose them.

A small business on Tuesday asked the U.S. Supreme Court to decide the legality of President Donald Trump’s tariffs, saying the court should take the rare step of hearing the case before appeals fully play out in lower courts.

A federal appeals court ruled Trump can continue to collect tariffs while businesses and states try to overturn taxes on foreign imports.