Symbols for ABN/AA

Reference: FMI 3-90.6 p. xxi, top paragraph: “Today’s varying types of divisional and non-divisional BCTs will be reduced to three variants. . . Selected infantry BCTs will be organized along the standard design, but retain the ability to conduct forced entry operations by vertical envelopment (air assault and airborne).”
Question: Is there a different symbol for “selected BCTs with ABN or AA capability”?
CAC says: Old symbols still applicable in this case.