The Homeless Pet Placement League (HPPL) is a nonprofit animal welfare organization that provides for the rehabiliation and adoption of stray and abandoned dogs and cats. The HPPL does not operate a shelter; animals are cared for in the homes of those who rescue them. The rescuer serves as the foster parent until the animal is adopted into a permanent home. This cooperative effort between HPPL and the foster home helps animals that would not fit the criteria allowing them to be placed for adoption at an animal shelter; these include animals with skin problems such as mange or ringworm, heartworm positive dogs, and injured or seriously malnourished strays.