U.S. congressional lawmakers have failed to agree on a spending package for the new fiscal year, which triggered a federal government shutdown on Wednesday.

Many Americans are wondering how the shutdown will impact travel , and, specifically, how it will affect passport applications and driver's license services.

Here's what we know.

Are passports still being processed?

Yes. The U.S. Citizenship and Immigration Services, the agency responsible for overseeing the naturalization process, is primarily funded by application fees, meaning a lapse in funding at the federal government has minimal impacts on most passport and visa processing.

What if I have a passport appointment with the United States Postal Service?

The U.S. Postal Service is unaffected by a government shutdown. It’s a

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