What are the requirements to become a foster? All fosters must: Be at least 21 years of age. Be willing and able to take your fosters to follow-up vet appointments as needed Keep your foster pets separate from household pets for 2 weeks in a spare room. If this is not possible, we will provide you with a playpen for kittens Feed, replace litter, and keep your fosters’ area clean Monitor your fosters’ daily health Socialize your fosters (play and cuddle!) Share