REAL ID requirements for those flying domestically began Wednesday.
The TSA says a REAL ID makes travel easier at the airport.
If you don't have one, you'll sit in longer lines, and Homeland Security says you should be prepared for extra scrutiny.
It could take up to 20 days to get a hard copy of the ID.
Homeland Security officials say that 81% of travelers already have IDs that comply with the REAL ID requirements.
The Connecticut DMV started offering REAL IDs in 2011.