The country is losing a significant amount of travel spending each second that the federal government is closed, according to the U.S. Travel Association.

US Transportation Secretary Sean Duffy threatened to fire air traffic controllers who are calling in sick while working without pay during the government shutdown.

The federal government shutdown has entered its second week, and already shortages of air traffic controllers have strained operations and disrupted flights at some U.S. airports.

A nor'easter, a powerful coastal storm, is forming off the Southeast US and is expected to bring treacherous seas, torrential rain, and tropical hurricane-force wind gusts to most of the East Coast until the first part of next week.

Canadian permanent residents and other travelers who require certain work, family, or special visas may face the charge.

The US federal government has shut down. The travel impact could be felt in longer airport lines, muddled itineraries and US National Park closures.

A U.S. government shutdown has begun, and it could impact travel plans, with potential airport delays and cancellations.

The guidance highlights changes in U.S. federal processes and notes that laws affecting travelers can vary widely across states.

The US State Department has four travel advisory levels. Level one is defined as exercise normal precautions, level two is exercise increased caution, level three is reconsider travel and level four is do not travel. Both the Maldives and Equatorial Guinea are classed as level two.

President Donald Trump predicted that Canadians will travel to the United States once again after a trade deal is reached. Trump told reporters in the Oval Office while meeting with Prime Minister Mark Carney on Tuesday that he understands why many Canadians are refusing to visit.