NEWPORT, Ky. (AP) -- The managers of the Belle of Cincinnati riverboat want to go green.

Newport-based BB Riverboats is seeking a $500,000 Environmental Protection Agency grant to retrofit its flagship Belle of Cincinnati with three new, more efficient electric generators.

BB Riverboats owner Alan Bernstein told The Kentucky Enquirer that if his company gets the grants, BB Riverboats will apply for another one to replace the three diesel engines on the boat with modern, fuel-efficient ones. BB Riverboats would then seek to replace generators and engines on its other two smaller boats - Mark Twain and River Queen.

The EPA grant is part of the National Clean Diesel Campaign, which received $300 million nationally from the stimulus act to reduce diesel emissions.