Attire Within Regulations
DAFI 36-2903
Mess Dress - 4.1.1.5. The bow tie is mandatory and will be blue-satin with square ends [self-tie, pre-tied, or clip-on]
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Formal Dress Uniform (for white-tie affairs; optional for weddings) - 4.1.1.5. The bow tie is mandatory and will be white with square ends.
4.1.1.6. The Vest is worn in place of the cummerbund and will be white.
Navy NAVPERS 15665I
Dinner Dress Blue Uniform - Article 3501.36. Bow Tie shall be plain with square ends. May be clip-on or hand tied. Black for all males; White for Formal Dress Uniform.
Army Reg 670-1
Blue/White Mess Uniform (Class A+) Black Bow-Tie; "black silk or satin... square ends..." [May be self-tie, pre-tied, or clip-on]
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Army Pam 670-1
Evening Mess Uniform White Bow Tie - "plain white silk or satin...not more than 2 1/2 inches"
White Vest - "single-breasted, cut low, rolling collar, pointed bottom, fastened with three white buttons
Marine Corps Order
P1020.34G
Evening Dress Uniform - 3020.2.c. Plain black bow tie with square ends will be worn