Traveling with pets - fun and problems

You know, traveling with pets is a great fun. But it is big problems too. Nowdays you have to chip a dog. Several words about chipping:

What do you have to know about microchips?

• Microchips are implanted only for healthy animals
• The size-grain of rice: 12x2mm
• Microchip is in a shell of biocompatible glass
• Microchip contains the following information: the digital code of the country and a unique identification code, which must not be duplicated in any country for at least 100 years. Individual code dogs - the last 4 digits.
• The microchip can be implanted only once