Current policy on Deferred Action for Childhood Arrivals (DACA) is the result of what type of federal action?

The current policy on Deferred Action for Childhood Arrivals (DACA) is the result of an executive action taken by the federal government. Specifically, it was established through a memorandum issued by President Barack Obama in 2012. However, it is important to note that DACA is a discretionary program and can be changed or terminated by subsequent administrations.