Microchipping pets is now mandatory in many regions around the world, such as in most EU countries, UK, Australia or some states USA. This is becoming more common worldwide. The specific requirements can vary slightly from country to country. 

Microchipping serves as a means of identification and is relevant for reuniting lost pets with their owners. If you’re unsure about the regulations in your country, contacting your local animal control or veterinary authority can provide you with accurate information.