WA HB1652

Ocean-going vessels must use marine gas oil or marine diesel oil with maximum 0.1% sulfur content by weight when operating within 3 nautical miles of Washington shorelines, effective January 1, 2028

Applies to commercial, government, or military vessels that are 400+ feet in length, 10,000+ gross tons, or have marine compression ignition engines with 30+ liter per-cylinder displacement; excludes tugboats, towboats, and pushboats

Noncompliance fees may be paid in lieu of meeting fuel requirements under limited circumstances (unplanned redirection, inadequate fuel supply, vessel modifications needed), with fees directed to ports for electrification or emission reduction projects

Violations carry civil penalties of $10,000 per day per violation, with penalties deposited in the natural climate solutions account; the Department of Ecology will collect fees from vessel operators to cover program implementation costs

Creates the vessel sulfur pollution account and may be cited as the "Salish Sea protection and marine clean fuels act"