The Lycoming County SPCA constantly receives calls about dogs chained to dog houses and we respond to every single call. Unfortunately this is no illegal in Pennsylvania. The dog house must maintain the dog's body heat when it is cold, shelter it from inclement weather, and be clean and sanitary. The dog must have access to food and water. The dog must have access to necessary veterinary care.
When people call us to complain, they think we can take the animal away because it lives outside. THIS IS LEGAL IN PENNSYLVANIA! So when you call a Humane Society keep in mind that the Officer can make recommendations for the owner to be in compliance but the Officer cannot remove the animal without a warrant and without just cause. Any warrant must be approved by the district attorney's office and a judge.
If you do not want to see dog chained to dog houses 24/7 call you representatives and senators and tell them you want the laws changed. You have the power to make a difference.