Amends the Animal Control Act. Provides that "dangerous dog" and "vicious dog" include dogs that attack companion animals. Requires the owner of a dog that has been deemed dangerous or vicious to place a sign by the owner's front door with a notice that a dangerous or vicious dog is kept or maintained at the residence and maintain a liability insurance policy insuring against liability involving a dog-related incident for injury to a person or injury to or destruction of property. Requires the Department of Agriculture to establish and maintain the Illinois Dangerous Dog Registry. Provides that the Registry shall include registration information on a statewide basis. Specifies the information that the Registry shall include about each dangerous or vicious dog. Provides that the address of the owner, the name and breed of the dog, and the acts that resulted in the dog being deemed vicious or dangerous shall be made available to the public on the Department's website. Requires the Department to make the public information searchable via a mapping system that identifies all locations where vicious or dangerous dogs are kept or maintained within 5 miles of an identified address. Requires the Department to set fees for the annual registration of dangerous and vicious dogs. Creates the Dangerous Dog Registry Fund, and provides that any funds collected shall be deposited into the Fund and used by the Department to maintain the Registry and the searchable mapping system on the Department's website. Makes a corresponding change in the State Finance Act.