Overview

Washington has passed legislation that prohibits the sale and distribution of expanded polystyrene (EPS) items, covering everything from loose‑fill packing peanuts to disposable food containers. The rule applies to any product or packaging material that reaches a Washington address through Amazon’s marketplace, meaning sellers must verify that neither their inventory nor their shipping supplies contain EPS to avoid delisting or enforcement action.

Key Points

• Statewide EPS prohibition — Washington’s law bars the commercial sale of any expanded polystyrene product, including the familiar white packing peanuts, insulated coolers, and single‑use plates, bowls, cups, and clamshell trays.
• Packaging supplies fall under the ban — The restriction explicitly mentions loose‑fill EPS peanuts, so any seller who currently uses those cushioning beads for shipments destined for Washington must replace them with an approved alternative.
• Food‑service containers are included — EPS items such as disposable plates, soup bowls, coffee cups, take‑out trays, and other similar food‑service products are prohibited, affecting vendors that list these items for sale to Washington customers.
• Amazon enforces the state rule — Amazon’s platform automatically blocks listings that contain EPS‑based products from being shown to buyers in Washington, and any violation can trigger removal of the offending ASINs.
• Alternative materials are required — Sellers need to source compliant substitutes—such as biodegradable corn‑starch peanuts, recycled paper filler, air pillows, or molded‑fiber food containers—to continue serving the Washington market without interruption.
• Compliance impacts both inventory and fulfillment — Whether a seller ships their own orders or relies on Amazon’s fulfillment network, any EPS material used in preparation, packaging, or as a sellable item will be scrutinized under the new rule.

How the EPS Ban Works

1. Product catalog audit — Sellers run a full inventory check to flag any SKUs that list EPS‑based items; for example, a vendor selling “white EPS packing peanuts, 2‑inch size” would see that ASIN automatically flagged for removal in the Washington marketplace.