In the UK, the Control of Dogs Order 1992 states that any dog in a public place must wear a collar with the name and address (including postcode) of the owner engraved or written on it, or engraved on a tag. Your telephone number is optional (but we would recommend this).
You can be fined up to £5,000 if your dog does not wear an identification tag.
Mr P Jones
No 37 SO50 9PT
02380 456789
OR
Mr P Jones
37 The Avenue
SO50 9PT
02380 456789
We will not tell you what information you should put on your tags, it is the owners responsibility to decide on what they would like on the tag.