AUSTIN - The Bureau of Domestic Utilities announced Sunday that a single workstation graphics processor serving a 753-billion-parameter model constitutes an unlicensed neighborhood substation. The classification was entered on docket BDU-753-W. Under the order, the machine may continue to produce tokens if the operator tapes paper office hours to the garage door, leaves a spare key with the fire department, and keeps a folding chair in the hallway for the duty engineer. The duty engineer is the operator wearing a borrowed high-visibility vest and may not sit while experts are resident in memory. "A substation is defined by the service it offers the block, not by the number of buildings it occupies," bureau counsel said. "One card is still a region if the region fits on a desk." Neighbors may submit prompts on paper slips during posted hours. The bureau clarified that the guest book is not a user log. It is a record that the neighborhood was notified. A spare folding chair must remain unoccupied when the operator is the only person in the house, the filing said. Reclassification as a private appliance has not been posted.