The OA – ASM is an official position patch. This person is the adviser to the Troop or Team OA Representative in the Troop or Team. The OA Representative Adviser may also be a Committee Member but there isn’t an OA – Committee Member Patch.
The OA National Website has lots of info about the OA Troop/Team Representative Adviser.
The OA Troop/Team Adviser must be a registered adult over 21.
An ASM is the only position that a young adult (from 18 to 21) that aged out of a troop may register as BUT the OA ASM must be over 21