How do I know if my dog needs a license?

Dog licenses are mandatory for all dogs three months and older. Applications are available at the Delaware County Treasurer’s Office, or a mail in application is available at the Township Office. All dogs must be under control and must not be allowed to run at large. Dogs are personal property and owners are responsible for damages caused by their dog. For further information, please refer to the Pennsylvania Department of Agriculture, Bureau of Dog Law Enforcement, click here.