To find a suitable home or shelter to relinquish an unwanted or untenable pet, contact the local animal control or the local branch of the Humane Society or the American Society for the Prevention of Cruelty to Animals. They will provide resources and localized advice to aid through relinquishment.
A veterinarian, friend, family or co-worker may also be able to assist in finding a new home for an unwanted pet, and websites such as Petfinder.com allow owners to list pets for adoption.
When dropping off the animal in its new location, bring any available veterinary records, if available, as well as special toys or other items the pet is familiar with. Such items can help to reduce stress during the transition.