The Biden administration is seeking to develop a border impenetrable by the unvaccinated but is yet to announce formal plans to vaccinate those crossing into the U.S. illegally.

The Biden administration announced it would be reopening the country to international travelers on Nov. 8, but they must be vaccinated to enter. However, the federal government has yet to implement formal programs to mandate COVID-19 testing or vaccines for those entering the country illegally.

White House press secretary Jen Psaki, confirmed during a press briefing last month that migrants at the southern border have not been required to be vaccinated against COVID-19.

The administration’s new proclamation speaks directly to “noncitizen nonimmigrants,” who will no longer be able to enter without proof of vaccination under the new rule, “except in limited circumstances.” The announcement said the Biden administration will also ensure the entry of any unvaccinated international travelers aligns with “health and safety determinations made by the Director of the CDC.” This includes a requirement, when “appropriate,” that unvaccinated travelers become fully vaccinated upon their arrival.

In the White House's announcement of the new entry requirements for international travelers the Biden administration asserted that it has also taken action "to ensure that noncitizen immigrants are vaccinated prior to air travel to the United States." Yet, the implementation of any formal program has yet to be announced.

Department of Homeland Security spokesperson Eduardo Maia Silva confirmed to the Arizona Republic last month that there have not been any recent policy changes related to vaccine requirements at the border.

“The health and safety of our workforce and the migrants in our care are of paramount importance,” Silva reportedly said. “While we regularly reassess our COVID-19 protocols, there have been no changes to our vaccination policy and the current protocols remain in place.”

Republican Governor of Florida Ron DeSantis told Fox News television host Tucker Carlson that vaccine mandates are “bad policy” and “not good for the economy.” The tourism industry has taken a big hit since the early days of the coronavirus, and international travelers play a part because they tend to stay longer and spend more money than domestic travelers, according to the Pew Research Center.

“From a revenue generation perspective, domestic leisure really can’t make up for the losses in international and business,” said a top official at the U.S. Travel Association, reported Pew.