When I worked at the Humane Society new arrival dogs were NOT allowed outside or even out of the kennel for that matter, it was kind of like a quarantine period. They had to stay like this until they got their shots at the HS, and well being that most of the owners gave them up for stupid reasons they usually didn't go to the vet, unless of course we got proof that the dogs were up to date on the shots then they didn't have to stay in quarantine as long as the other dogs.