Washington County commissioners voted Monday to approve specific guidelines for tethering dogs in unincorporated areas of the county.“We re really trying to address big abuses,” says Commissioner Kenneth Huffine. Rules include a dog “shall not be tethered by means of a choke, pinch slip halter or prong-type collar.” • The tether must be “a minimum of 10 feet long and weigh no more than 10% of the dog’s body weight.” The fine for a first offense ranges from $25 to $50.