Dept of Corrections here. I cannot wear it at work but I have worn it to outside-of-work (physically, outside the building) functions.

2 Officer Funerals, wearing my Black Watch Kilt.
1 Officer's Father's funeral.
3 officer Weddings, wearing my Black Watch and my Hotwheels Kilt (at the after-party).

Now I have my Family Tartan I can also wear.