I have been blessed with the addition of a puppy, Leo. I had a microchip put in under his skin at the same time he was neutered as part of the first year of puppy care. I chose the company Petlink for their one time fee,  $42.00, for life-time coverage.  The identity library of information is available online, 24 hours a day, seven days a week worldwide for the  life of the animal. This is also a worldwide company, which is handy for anyone who travels outside the US with their pets or any animals.

The competitor company uses a microchip placed in the same manner but has a yearly fee to keep the data in an available library for retrieval. Est. $35.00. Most Veterinarians carry the yearly fee company because the company gives them the startup supplies for free.  Petlink, has a start-up cost for equipment to the Veterinarian, &  costs are made back  as microchips are registered. The Petlink site has lists by State, of Veterinarians who carry the Petlink  microchips.

www.petlink.net/us/owner/vetList.spring

Check out this link to find out how many lost pets are never returned home and the importance of microchips.

/www.avma.org/readallchips/default.asp