The U.S. Supreme Court decided to take up President Donald Trump's executive order on immigration on Monday — allowing a limited version of the travel ban to take effect in 72 hours.

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Though it's uncertain if the court will uphold the travel ban when it issues its final ruling, which is expected to come this fall, most of its provisions will be active in the interim. This includes a 90-day ban on immigration from six predominantly Muslim countries and a 120-day suspension of the U.S. refugee program, The Associated Press reported.

There is one exception to the travel ban, though.

Individuals who have a "credible claim of a bona fide relationship with a person or entity in the United States" will be allowed to enter the country, the Supreme Court ruled.

Here are the groups that will be impacted when the ban takes effect on Thursday.

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1. Immigration applicants from Iran, Libya, Somalia, Sudan, Syria and Yemen.

Trump's initial travel ban imposed a temporary ban on immigration from seven Muslim majority countries, but a revised version that was subsequently blocked by federal appeals courts lists six countries whose residents will be affected.

One of the main legal arguments against the travel ban is that it effectively discriminates against Muslims — a claim that's based both on the fact that the countries included in the ban are predominantly Muslim as well as past statements calling for a Muslim ban by Trump and his presidential campaign advisers.

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2. All refugee applicants.

All individuals fleeing violence or political persecution who apply for refugee status in the U.S. will be denied for 120-days. That includes a suspension of the Syrian refugee program.

3. American businesses.

Immigration experts have warned that imposing a sweeping travel ban of this nature would negatively impact American businesses — especially those that rely on business from tourism during the summer. The ban could dissuade prospective tourists from visiting out of fear that they would be turned away or detained at American airports.

Here are the groups who are exempted from the travel ban.

1. Current college students.

Students who are currently enrolled in, or were recently admitted to, universities in the U.S. would not be impacted by the travel ban.

The court stated that "the relationship must be formal, documented, and formed in the ordinary court, rather than for the purpose of evading [the executive order.]"

2. Employees who work at American businesses.

Workers "who accepted an offer of employment from an American company or a lecturer invited to address an American audience" would not be impacted, the court ruled.

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3. Individuals who have relatives in the U.S.

If you're a foreign national from any of the six countries impacted by the travel ban, you can lawfully enter the United States. The court stipulated that prospective visitor is required to have a "close familial relationship."

Adam Winkler, a professor at UCLA Law School who specializes in constitutional law, told ATTN: that while many media outlets have characterized the Supreme Court's action as a "victory" for the president, adding, "the Trump administration lost badly here."

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That's because of the restrictions the court imposed on the ban, which neuters the executive order by permitting entrance to anyone who has an established relationship in the country. It's also worth noting that the court "refused to hear this case on an expedited basis," Winkler said.

"If the justices had believed the Trump administration's arguments that this ban was a matter of pending national security, then they could have scheduled a hearing right away," he said. "That they didn't suggests some skepticism about how important it is travel ban to take effect in its entirety."