The Avid FriendChip provides permanent, unique identification for companion animals, livestock and wildlife. The Avid FriendChip includes encryption features to prevent duplication or cloning of the identification code. The Avid FriendChip has a unique 9 digit number which lessens the potential for transcription or clerical errors that occur with 15 digit numbers. The Avid FriendChip is not affected by x-rays or MRI and will outlast the life expectancy of most pets. The AVID FriendChip is preferred by clinicians around the world.