The Oklahoma Department of Public Safety says the government has rejected the state's request for an extension of time to comply with the federal REAL ID Act.
But the agency said Tuesday the U.S. Department of Homeland Security won't begin enforcing the act until after Jan. 29.
Public safety officials say that afterward, federal agencies will be prohibited from accepting driver's licenses and identification cards issued by non-compliant states, meaning those without identification that complies with the REAL ID Act won't be admitted to a federal building, military base or courthouse.
The act was passed to ensure the reliability of driver's licenses, but legislators in Oklahoma and elsewhere believe the government is overreaching.
Gov. Mary Fallin says she will work with state and federal officials to minimize any adverse effects.