The military's active-duty military personnel stay on duty, Congress did pass, and the President signed legislation making sure military paychecks go out on time.
The federal courts are open, thanks to Congressional funding, for the next ten days... and air traffic controllers are at their positions, directing flights into and of out of the nation's airports.
The US mail will keep getting delivered. The US Postal Service doesn't get tax dollars for day-to-day operations (but it is still controlled by Congress).
Due to the Federal Government shutdown, NOAA.gov and most associated web sites are unavailable. However, because the information this site provides is necessary to protect life and property, meteorologists say the National Weather Service Chicago website, for instance, that shows the forecast, along with watches and warnings, will be updated and maintained during the Federal Government shutdown. See the message here: http://www.crh.noaa.gov/lot/
National parks are closed, like Indiana Dunes National Lakeshore, where Public Information Officer Bruce Rowe told us campers at Dunewood Campground would be given 48-hours to vacate in the event of a shutdown.
The Indiana DNR is getting the word out today that Indiana’s 24 state parks – including Indiana Dunes State Park here in the Region – and eight reservoir properties remain open for business as usual. The Indiana DNR says there is an Indiana state park or reservoir property within a one-hour drive of every Hoosier. October is actually one of the most popular camping months of the year, with autumn- and Halloween-themed events happening at many properties. Indiana Dunes National Lakeshore is closed during the shutdown.