Susan Podziba couldn’t enter a federal building near Washington this month because her driver’s license revealed an unacceptable home state: Massachusetts.

Bay State residents can no longer use their driver’s licenses to get inside some government agencies because the state is one of nine that have not signed on to a federal law called REAL ID. If nothing changes, they will even lose the ability to display their licenses to board a plane.

The REAL ID measure presses states to verify citizenship and update security standards when they issue licenses. Congress intended the act to prevent terrorists who arrive in the country illegally from boarding planes. But officials in Massachusetts and elsewhere have balked at a program they claim costs millions, raises privacy concerns, and infringes on state’s rights.

States face no direct penalty other than the frustration of their citizens.

Some restrictions — such as the one that kept Podziba, a public policy mediator from Brookline, out of the National Oceanic and Atmospheric Administration — began in late July.

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Unless the state decides to participate, Massachusetts residents without other identification will find themselves banned from White House tours next year and commercial airplanes as soon as 2016.