International vehicle registration code registration plate. When the distinguishing sign is incorporated in the registration plate, it must also appear on the front registration plate of the vehicle. The requirement to display a separate distinguishing sign is not necessary within the European Economic Area, for vehicles with license plates in the common EU format which satisfy the requirements of the Vienna Convention, and so are also valid in non-EU countries signatory to the convention. Separate signs are also not needed for Canada, Mexico and the United States, where the province, state or district of registration is usually embossed or surface-printed on the vehicle registration
Copyright registration an international level without a requirement for national registration. However, the U.S. still provides legal advantages for registering works of U.S. origin. It is a common misconception to confuse copyright registration with the granting of copyright. Copyright in most countries today is automatic on "fixation" – it applies as soon as the work is fixed in some tangible medium. This standard is established internationally by the Berne Convention (1886), which most countries have signed onto since. Registration may be required by countries before joining Berne. For instance, the US required registration of copyrighted works before it signed onto the Berne