To address growing concerns about the discharge of sewage from boats, NEIWPCC sponsors a conference of pollution control agencies, boat builders, marine equipment makers, and yachting interests at the National Motor Boat Show. Attendees endorse a statement calling on states to consider requiring sewage treatment devices on boats.

A NEIWPCC analysis shows that 61% of the total population of sewered communities in the region are served by wastewater treatment plants, up from 39% ten years earlier.