_{MARAD partnered with Sea Machines and the Maine Maritime Academy to compare emissions from a workboat using autonomous and manual modes. A 41 foot diesel powered research vessel was outfitted with an autonomous control system and measurement instrumentation for determining gaseous emissions of carbon dioxide (CO2), carbon monoxide (CO), oxides of nitrogen (NOx), Total Unburned Hydrocarbons (THC), and oxides of sulfur (SOx).}