BLACK TIE INVITED
An event where a tuxedo or dinner jacket
is encouraged but not required. If not a tuxedo, proper
dressy attire (coat and tie) is necessary.
BLACK TIE OPTIONAL
An event where a tuxedo or dinner jacket
may be worn but is not required. Proper dressy attire
(suit, not a sport coat) is necessary.
BLACK TIE REQUIRED
An event where a tuxedo or dinner jacket
is required. Don't even think about attending without
one.