How to Safely Socialize a Puppy Before Vaccinations We often get asked how to safely socialize a puppy before they are fully vaccinated. It’s really important to get your puppy out experiencing new sights, smells and environments as soon as possible after they’ve settled in at home BEFORE they receive their last set of vaccinations. A puppy’s critical socialization window closes around 14-16 weeks of age. This is the time of your pup’s life when they are forming their opinions about the world and most open to new experiences. Puppies typically receive their final round of vaccines around 16 weeks of age. This means that if you wait to take them anywhere until their vaccines are completed, you’re totally missing out on this huge window of opportunity with your puppy! The veterinarians at the American Veterinary Society of Animal Behavior say that the risk that your puppy contracts an infection is much less than the risk of negative behavioral fallout from keeping your puppy ...