The CBP AD/Okta group "TUS EMT MAILING LIST" has at least 2 members.
CN=TUS EMT MAILING LIST,OU=TUC029A GROUPS,OU=TUC029A,OU=CentralArizona,OU=SouthWest,DC=ad,DC=cbp,DC=dhs,DC=gov
TUS EMT MAILING LIST