 The U.S. Constitution prohibits federal and state governments from conferring titles of nobility (see Title of Nobility Clause) and there are few noble coats of arms in the country.However private persons, including several past presidents, employ coats of arms either granted to them, or which they inherited.Since there is no official regulation on arms, except for the official seals, badges, insignia, decorations and medals of the country and the states, many private individuals have assumed arms, in addition to those who inherited them, or had them granted by or registered in another country.