A question for the experts on heraldry. A COA is approved and registered with The Lord Lyon. I believe it is illegal for someone in Scotland, and presumably the UK, to use the said COA for commercial, or otherwise, purposes. For example a Clan Chiefs COA on a tee shirt. Is it illegal to do the same in another jurisdiction, the USA or Canada say. I was asked this question by someone who saw a COA as described at a Highland Games in Canada. The COA is registered in Scotland but not in Canada. I know COA registered in Canada are protected by the Trade Marks Act of Canada but I don't know if this extends to COA (Trade Marks) registered elsewhere and used without authority outside the jurisdiction of the registrar (the Lord Lyon, as an example). Can anyone on the forum speak to this with some authority, knowledge, or experience?