Aiming to rein in this proliferation, Congress passed the National Emergencies Act in 1976. Under this law, the president still has complete discretion to issue an emergency declaration—but he must specify in the declaration which powers he intends to use, issue public updates if he decides to invoke additional powers, and report to Congress on the government’s emergency-related expenditures every six months. The state of emergency expires after a year unless the president renews it, and the Senate and the House must meet every six months while the emergency is in effect “to consider a vote” on termination.
https://www.theatlantic.com/magazine/archive/2019/01/presidential-emergency-powers/576418/