I think this shirt is USEA show-legal? Can someone confirm?

[CindyCRNA]

So the long sleeve is a no if they wave jackets, correct?

[Highflyer1]

Long or short sleeved is fine. You just have to have sleeves.

[Janet]

@CindyCRNA

So the long sleeve is a no if they wave jackets, correct?

Nope.
Long OR short sleeves are legal.
Sleeveless is NOT legal.