ARA (Antwerp-Rotterdam-Amsterdam). A range of ports in a charterparty or report of a fixture specifying that the ship is chartered to load or discharge at a port or ports in this range.
Anti-pollution clauses. These are clauses inserted in a charterparty and generally place responsibility on the shipowner to ensure that he obtains suitable insurance cover or can provide alternative security for compensation he may become liable to pay for pollution, by oil (or similar substances) and for clean-up costs.
AA AA. Always afloat, always accessible.
Always afloat. In order to prevent a vessel from being ordered to proceed to a berth where she cannot load or discharge without touching the ground or which can only be reached safely after discharging part of the cargo into lighters or which can only be reached with spring tide, the so-called "always safely afloat clause" is inserted in the charterparty.