As online shopping grows, package thefts are a risk Packages advance on a conveyor belt as they are sorted at the U.S. Postal service’s Royal Palm Processing and Distribution Center on December 4, 2017 in Opa Locka, Florida. The U.S. Postal Service is projecting more than 850 million packages will be sent during the busy holiday shopping and gift giving season. They expect to deliver more than 6 million packages each of the five Sundays before Christmas in select major markets. (Photo by Joe Raedle/Getty Images)

Hundreds of thousands of federal employees could be barred from working if Congress can’t agree to a budget plan and avoid a shutdown.

But the country’s more than 500,000 postal service workers won’t be among them.

Mail service will continue uninterrupted, even during a government shutdown.

That's because the U.S. Postal Service is not funded by taxpayer dollars for everyday operations.

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