December 24, 26 declared temporary federal holidays, who is off work?

Mahoning Valley & U.S. - U.S. President Donald Trump has signed an executive order declaring Christmas Eve, as well as the day after Christmas Day, federal holidays. But who actually gets these days off and who still has to report to work?
USA Today reports that while most workplaces outside of government offices follow the federal holiday schedule when giving employees paid days off, that may not apply here because these days have not been added to the federal holiday schedule permanently.
According to USA Today, only federal agencies will be closed on December 24 and 26. As for everyone else, the answer as to whether or not employees will still have to report to work is up to agency leaders and private businesses.
In other words, banks, post offices and retail stores will largely remain open. Additionally, mail will be delivered on both days.
In order for Christmas Eve and the day after Christmas Day to become permanent federal holidays, legislation must pass through the House and Senate and be signed into law by the president, according to USA Today.
