More than 400 national parks are closed. The EPA and NASA shuttered.

It's just a small sample of the impact of a partial government shutdown, but lawmakers don't seem any closer to ending their budget stalemate.

We wanted to find out what federal government operations are open?

The post office doesn't get any federal funding for one, so everyone will continue to get their mail without any delays.

There's also been confusion about banks, all of them will stay open without any hitches regardless of how long the shutdown lasts.

People who receive federal benefits: Social Security, Veterans and the unemployed will keep getting their checks.

All will be business as usual at airports as well; the Transportation Security Administration, or TSA, as well as air traffic controllers won't be affected, nor will any government agency with public safety as its primary function.

Yesterday, we told you Total Action for Progress, or TAP was also waiting to hear if it would shut down because it funds itself primarily through federal grants.

TAP was relieved to find out this morning that because the grants that fund most of their programs were approved months ahead of now, they should be fine in the short term.

"We are trying to look at what may happen down the road, don't have a history of a long shutdown, but we've had stranger things happen, and we want to be prepared for the long term," said Jo Nelson, a TAP director.

Joey Snead teaches through the Youth Build program run by TAP.  He was one of the many TAP employees who didn't know if he could come to work Tuesday.

"It's a big source of relief to me because this is my only source of income and you hear a lot on the news about the federal people getting furloughed, so none of that is going to trickle down to us," Snead said.

There's still a lot of anxiety among groups like TAP that rely on federal funding.

Many of the support staff who work for the federal government and oversee TAP programs have been furloughed.