So
@grumbledore 's extremely accurate comment that 95% of all weddings don't come close to qualifying for black tie got me thinking. There has been a very helpful list of what qualifies for black tie going around, let's make a list of what disqualifies.
(this is meant to be somewhat tongue in cheek and humorous, but I truly believe all of these things and more cannot happen at a true black tie event)
Your wedding is NOT black tie if. . .
Your guests pay for parking.
Your reception is at a 3 star or lower hotel (quite possibly even 4 star in some areas).
The wine you are serving can be sold in box format.
What else would you add to the list?