The U.S. government is now enforcing the use of Real ID, which requires users to have federally compliant identification to board flights, among other uses.

The Real ID is a product of the Real ID Act of 2005, passed in the wake of the 9/11 attacks, mandating that travelers use a new, federally compliant form of ID, not only to board flights but also to enter certain federal buildings.

The enforcement date for the Real ID was Wednesday, though current rules take into account those who don’t yet have one.

Here are five things to know about Real ID since the enforcement deadline has passed:

Can you board a flight without Real ID?

The Department of Homeland Security (DHS) has said that people can still board their flights if they don’t have Real IDs, though they may be subject to increased scrutiny.

“Passengers who present a state-issued identification that is not REAL ID compliant at TSA [Transportation Security Administration] checkpoints and who do not have another........

© The Hill