http://www.friendsofanimals.org/prog...ter/index.html
Go to that website and enter your zip code and see what id available in your area. For Thor, all I have to do is go down tot the local animal shelter, pay them $54 dollars in cash, and bring the certificate to my vet. Actually, my regular vet didn't take certificates, so I had to find another vet that did take them, but I found one under the suggestion of a friend that just had 3 dogs neutered at this place. When you put your zip code in on the website above, it will give yo a lis of places that accept the certificate. Good luck. Oh, but you also have to pay for antibiotics which my friend said was $20.