WASHINGTON (AP) — The world’s largest cruise ship company will adopt technology from power plants and automobiles to reduce air pollution from the massive diesel engines powering its ships.

In a tentative agreement reached Thursday with the Environmental Protection Agency, Carnival Corp. will deploy scrubbers to reduce sulfur dioxide and filters to trap soot on as many as 32 ships over the next three years. At port, the ships will either plug into the electrical grid, rather than idle, to reduce pollution or use a lower sulfur fuel.