Citizens of eight countries, including North Korea and Venezuela, will face new restrictions on entry to the US under a proclamation signed by President Donald Trump that will replace his expiring travel ban.
The new rules, which will impact the citizens of Chad, Iran, Libya, North Korea, Somalia, Syria, Venezuela and Yemen, will come into effect on October 18.
The restrictions range from an indefinite ban on visas for citizens of countries such as Syria to more targeted restrictions. A suspension of non-immigrant visas to citizens for Venezuela, for instance, will apply only to certain government officials and their immediate families.
The announcement comes the same day as Mr Trump's temporary ban on visitors from six Muslim-majority countries was set to expire 90 days after it went into effect. That ban had barred citizens of Iran, Libya, Somalia, Sudan, Syria and Yemen who lack a "credible claim of a bona fide relationship with a person or entity in the United States" from entering the US. Only one of those countries, Sudan, will no longer be subject to travel restrictions.
"Making America Safe is my number one priority. We will not admit those into our country we cannot safely vet," Mr Trump tweeted late on Sunday after the new policy was announced.
Unlike the first iteration of Mr Trump's travel ban, which sparked chaos at airports across the country and a flurry of legal challenges, officials stressed they had been working for months on the new rules, in collaboration with various agencies and in conversation with foreign governments.
To limit confusion, valid visas would not be revoked as a result of the proclamation. The order also permits, but does not guarantee, case-by-case waivers for citizens of the affected countries who meet certain criteria.
That includes: having previously worked or studied in the US for a lengthy and continuous period of time activity; having previously established "significant contacts" in the US; and having "significant business or professional obligations" in the US. Still, officials acknowledged the waiver restrictions were narrower than the exemptions for people with bona fide ties to the United States that he Supreme Court mandated.
The restrictions are targeted at countries that the Department of Homeland Security (DHS) says fail to share sufficient information with the US. or have not taken necessary security precautions.
Over the course of the last three months, DHS worked to developed new security baselines, which includes factors such as whether countries issue electronic passports with biometric information, report lost or stolen passports to Interpol, and share information about travellers' terror-related and criminal histories. The US then shared those benchmarks with every country in the world and gave them 50 days to comply.
A total of 16 countries did not comply with the rules at first, officials said, but half worked with the US to improve their information-sharing and security practices. The remaining eight are now subject to the new restrictions until they are deemed in compliance.
The includes a suspension of all immigrants visas for nationals of Chad, Iran, Libya, North Korea, Syria, Yemen and Somalia, and the suspension of non-immigrant visas, such as for business and tourism, to nationals of Chad, Libya, North Korea, Syria and Yemen.
Citizens of Iran will not be eligible for tourism and business visas, but remain eligible for student and cultural exchange visas if they undergo additional scrutiny. Such additional scrutiny will also be required for Somali citizens applying for all non-immigrant visas.