The ban also affects U.S. permanent residents and citizens.
As President Donald Trump's travel ban on seven countries went into effect over the weekend, citizens and immigrants from those countries were not the only ones to experience its repercussions.
U.S. travelers—citizens, legal residents, and green card holders—saw a wave of immediate reaction that will continue to affect their own travel, as well.
Trump's executive order banned travelers from seven predominantly Muslim countries, including Iran, Iraq, Somalia, Syria, Sudan, Libya and Yemen for the next 90 days. He also banned Syrian refugees from entering the country indefinitely. While Trump claimed the executive order was put in place to fight terrorism, no person from any of the countries included in the ban has committed a terror attack against the U.S. in the past 15 years, The New York Times reported.
Here is what to expect if you are traveling soon.
Be ready for possible airport delays
Protests erupted at airports across the U.S. over the weekend as the ban took immediate effect. While there was scant evidence that the protests caused travel delays, the demonstrations did affect ground transportation in and out of airports.
Check on ground transportation
Travelers should check their local transportation providers for any strikes or disruptions in service. The New York Taxi Workers Alliance, a drivers union, issued a temporary strike on driving to J.F.K. airport after several immigrants were detained at the airport over the weekend.
Before heading to the airport, research any possible demonstrations, closed roads, or other events that might be taking place near your terminal.
Give yourself more time
As ambiguity continues to shroud the executive order and how exactly it is to be implemented, air travelers can expect delays in ground transportation and security screenings. Particularly with international travel, it’s good to aim to arrive at the airport at least three hours before your scheduled departure.
Know which airlines are offering refunds
American Airlines, Delta, and United have begun offering fee waivers to travelers who are affected by the ban, including rebooking and refund options.
To find out what options are available depending on flight and destination, air travelers should always check directly with the air carrier.
Know what to expect concerning secondary screenings
Over the weekend, customs officers also began detaining legal U.S. residents, including green card holders who were originally from the seven countries included in the ban, according to human rights organizations. Dual citizens and green card holders from the banned countries were also frequently subjected to secondary security screening.
Secondary security screening can include pat-downs, being questioned in a separate “green room,” and being detained at the airport, as U.K. journalist John Walton detailed in a personal essay of his own experience with the practice.
Representatives from the Trump administration sent mixed messages about this aspect of the ban on Sunday, with some claiming the ban should not affect permanent residents while others warned that secondary screenings would continue to be in effect, CNN reported.
Bring all necessary documents to prove you’re a permanent resident
Green card holders and visa holders should take extra precautions to ensure that they have all of the proper documentation in order to reenter the U.S., including a passport from their home country as well as their U.S. residence card.
The Department of U.S. Citizenship and Immigration Services offers more specific information concerning the necessary documentation on their website.
Be aware of your destination country's views on the ban
Many nations around the world were quick to condemn the decree, including France, which has seen over 200 people killed from Islamic terrorism in the past two years.
"Terrorism doesn't have a nationality; discrimination is not an answer," French Foreign Minister Jean-Marc Ayrault said in a post to Twitter.
Leaders from the U.K., Canada, and Germany—to name a few—also joined in their condemnation of the order.
Australian Prime Minister Malcolm Turnbull lauded Trump’s decision, saying, “It is vital that every nation is able to control who comes across its borders."
Iran went further than condemning the ban and announced plans to bar U.S. citizens from entering the country, according to Reuters. This announcement came after relations between the two countries had thawed under President Barack Obama, under whose administration business and tourism relations had begun to resume after decades of sanctions.
As U.S. marshals interpret the executive order and local judges and lawyers mount opposition, a great deal of confusion surrounds the rule’s implementation.
"We just simply don't know how many people there are and where they are," said Lee Gelernt, deputy director of the American Civil Liberties Union's Immigrants' Rights Project, Associated Press reported.
This article originally appeared on Travel and Leisure.