Pet pooches in Poplar can be micro-chipped for free ahead of laws which make the tagging system mandatory.
Dogs of all breeds, shapes and sizes are required to have the device - the same size as a grain of rice - inserted when regulations come into force in April.
After man’s best friends are micro-chipped, they can post for selfies in a Pampered Pet Photo Booth, munch into tasty dog dishes.
Further activities, games and freebies will be available throughout the sessions.
The new regulations are designed to reduce the number of strays on the streets and owners who do not comply could face fines of up to £500.
RSPCA’s head of public affairs David Bowles told the BBC: “Compulsory micro-chipping and extending the law to cover private property as well as public spaces is a welcome move.
“However, on their own we don’t believe they will make owners more responsible or ensure fewer dogs bite people or other animals.”
January 23, free, Linc Centre from 10am to 12.30pm, Aberfeldy Centre from 2pm to 4.30pm.