But until then, the Department of Homeland Security will begin restricting some visitors from six countries — Syria, Sudan, Iran, Somalia, Libya and Yemen — as outlined in a revised executive order issued by President Donald Trump in March.

The action comes two days after the Supreme Court agreed to consider whether broader travel restrictions would go forward, as the government demands, or whether they would be halted by objections raised by lower court judges. The Supreme Court is expected to hear arguments in October.

WASHINGTON — The Trump administration is expected to issue guidelines Thursday for how U.S. border officials should enforce a limited travel ban against foreign visitors from six predominantly Muslim countries.


A Department of Homeland Security spokesman said the agency was working with the Justice Department and the State Department to provide guidance for carrying out the travel restrictions.

On Tuesday, the justices imposed limits on Trump’s travel ban while they examine the scope of presidential power over border security and immigration. The court said the ban could not be imposed on anyone who had “a credible claim of a bona fide relationship with a person or entity in the United States.”

Immigration advocates who had challenged the travel ban in court said that meant the vast majority of people seeking to enter the United States to visit a relative, accept a job, attend a university or deliver a speech would still be able to come.

Omar Jadwat, the director of the American Civil Liberties Union’s immigrants rights project, said the organization would be watching closely to see the government’s guidance about how it imposes the restrictions. If the United States immediately starts enforcing new rules, Jadwat said, “it means that everybody is going to be in the situation of kind of scrambling to understand whatever they put out and work through the issues.”


Trump first issued an executive order in January blocking visitors from seven countries, including Iraq, from traveling to the United States for 90 days. He also suspended the nation’s refugee program for 120 days. Homeland Security Department officials said the time was needed to address gaps in the government’s screening and vetting procedures.

But after a federal judge blocked the travel restrictions, the administration in March revised the order to exclude Iraq and dropped the suspension of the refugee program. That, too, was blocked by a federal judge.