A microchip is about the size of a grain of rice and is injected under your pet’s skin, between the shoulder blades. It can be done during a normal consultation. The microchip is embedded with a code unique to your pet and is the most effective form of permanent identification. This code is placed onto an online database, which allows authorised persons (generally veterinary staff and council rangers) to access the information associated with the code. Veterinary staff use microchip numbers to identify individual pets and to reunite lost animals with their owners. Microchips can also assist where the ownership of an animal is in dispute. Microchipping is compulsory for all cats and dogs in New South Wales, including working dogs.