U.S. Homeland Security Secretary Kristi Noem said air travelers starting Wednesday who do not have enhanced ID cards may face enhanced security procedures but will not be denied access to flights.

The head of Homeland Security says travelers who aren’t REAL ID compliant by the upcoming deadline this week will still be able to fly but should be prepared for extra scrutiny.

Though the enforcement deadline has passed, travelers lacking appropriate IDs can still board planes by undergoing additional security procedures.