(Portland, OR) -- The City of Portland has launched a 16-block area downtown to test a requirement for zero emission deliveries. The area includes City Hall, the federal building and the Justice Center. It runs from 5th Avenue to Naito Parkway and from Jefferson to Taylor. Sensors would record which vehicles use loading zones. Delivery services could off-load items outside of the zone and use zero emission vehicles to make their stops. Violators would get a citation. The pilot is funded by a two-million dollar federal grant.