Under FAS (Free Alongside Ship) terms, the seller is responsible for clearing the goods for export and placing them alongside the vessel at the named port of delivery. The seller is responsible for packaging of the goods, obtaining necessary documentation and approval for export, transportation to the origin port and costs of custom at origin. The risk of loss or damage transfers from the seller to the buyer when goods are alongside the ship, and buyer is responsible for loading the goods onto the vessel, and all costs associated with that process, as well as the cost of shipment to the agreed location. FAS is better suited for non-containerized cargo such as bulk cargo, liquids, chemicals, and Out of Gauge.
For a detailed breakdown of responsibilities and risk transfer across different Incoterms, refer to the Incoterms Responsibility Overview.