The Biden Administration issued new guidelines Thursday to immigration officers that say that being an undocumented person should “not alone be the basis” of being deported.

Department of Homeland Security Secretary Alejandro Mayorkas said in statement that the department will focus their resources on apprehending and removing undocumented immigrants who are a threat to the national security, public safety and border security of the United States.

“We are guided by the knowledge that there are individuals in our country who have been here for generations and contributed to our country’s well-being, including those who have been on the frontline in the battle against COVID, lead congregations of faith, and teach our children,” Mayorkas said in a statement.

The new rules could mean that the majority of undocumented immigrants in the U.S. will be protected from getting arrested or deported, unless they commit a crime.

The guideline will go into effect on 11/29/2021.