There are no strict rules on who has the right to wear a particular tartan. People normally wear only the tartan (if any) of their surname, or a “district tartan” connected with where they live or where their family come from.
Wearing a particular clan tartan indicates that the wearer bears an allegiance to the chief of that clan. A tartan which uses the name of a clan may only do so if the chief of that clan has given his approval to the particular design.
There is no official register of tartan. Records of designs are maintained by the Scottish Tartans Authority, Fraser House, 25 Commissioner Street, Crieff, Perthshire, PH7 3AY.