In construction at Rainier Shipyard in , Foss Maritime's Hybrid Tug combines batteries, generators and main engines to reduce air pollution and offer greater fuel economy. The technology used is flexible and can be used to convert other standard tugs. The Hybrid Tug design was awarded the EPA’s Clean Air Excellence Award for Clean Air Technology earlier this year.
Foss has contracted with Lloyd’s Register North America, Inc. to obtain a Green Passport certification for the low emission Hybrid Tug. The vessel, which will be the first tug in North America with a Green Passport certification, is scheduled to begin operation in southern in fall 2008. The tug design was awarded the EPA’s 2008 Clean Air Excellence Award for Clean Air Technology.