What means C.S.A. in Movie credits?

For example: John Doe, C.S.A.

What means C.S.A. in Movie credits?
It means the person is a member of the Casting Society of America.





From their site: "The Casting Society of America is the premier organization of theatrical Casting Directors in film, television, and theatre. Although it is not a union, its members are a united professional society that consistently set the level of professionalism in casting on which the entertainment industry has come to rely. It's more than 350 members are represented not only in the United States, but also in Canada, England, Australia and Italy."