Friends of Animals
Lists a spay/neuter hotline (1-800-321-7387) and will send a list of veterinarians in your area and a certificate for 50% off the cost of a spay/neuter.

SPAY/USA
A national referral service for the public regarding low cost spay/neuter programs. By calling their toll-free number, 1-800-248-SPAY, you will receive information about the nearest low-cost program and will be sent a certificate as proof you have gone through the SPAY/USA network. It has over 900 programs and clinics nationwide with about 7,500 top-notch veterinarians in the network.

Humane Societies, S.P.C.A.'s and hundreds of other non-profit groups nationwide offer periodic low cost clinics to pet owners and certificate/coupon/rebate programs with participating vets who discount their regular spay/neuter services. Check local newspapers for announcements and Community Calendar segments on local TV and radio broadcasts.

Many veterinary clinics also offer a Free "new pet" exam with proof of adoption from a licensed shelter, humane society or adoption agency.