LEGAL REQUIREMENTS
There are currently no legal requirements in the UK to have a cat ID tag however, it is preferred that a cat has an ID tag. Here is a great template to follow when choosing what details need to be on the tag:
Line 1: PET NAME
Line 2: OWNER'S PHONE NUMBER
Line 3: OWNER'S NAME
Line 4: SHORT ADDRESS (Example: 23 - S71 4RG)