Don’t be surprised if you come across more Eastern European and South Korean tourists in the United States after today. Travelers in seven countries were just given the right to visit the United States for up to three months without having to get a visa first — something that visitors in 27 countries already are able to do, the Department of Homeland Security announced today.

The U.S. travel industry has pushed for removing these particular hurdles, and DHS says the program has new security features. The countries involved are required to share security-related data with the United States and meet standards in areas like counterterrorism and document verification. Still, the program has been contentious. Rather than visit a consular official for a visa, travelers will use the online ESTA system to qualify.

The newly eligible nationalities are the Czech Republic, Estonia, Hungary, the Republic of Korea, Latvia, Lithuania, and Slovakia. Greece is hoping to be included in the next round.

NYC & Company, a tourism and marketing organization, says it’s planning accordingly for increased business with South Korea.

The nations already in the Visa Waiver Program are Andorra, Australia, Austria, Belgium, Brunei, Denmark, Finland, France, Germany, Iceland, Ireland, Italy, Japan, Liechtenstein, Luxembourg, Monaco, the Netherlands, New Zealand, Norway, Portugal, San Marino, Singapore, Slovenia, Spain, Sweden, Switzerland, and the United Kingdom. Mexico and Canada are subject to separate, special agreements.