Pretty sure there isn't an official one, but if I were you I wouldn't go in anything less than dress jeans and a collar shirt (i.e. not t-shirt or shorts).
Upscale casual, though not enforced unless it has to be
They dont care what you wear. I go in shorts and a t-shirt all the time. Dont forget to get key lime pie 🥧. 😋
I agree.
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