I've already posted my reply to this topic, but here is one other piece of info. You are allowed to wear most tartans, but when it comes to the Clan Coat of Arms, it is registered to the clan Chieftan and only he may display it. A clan member is allowed to wear a clan badge, but it must be the clan symbol encircled by a belt. Witness the MacNeil of Barra Clan badge in my Avitar.