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This International Standard specifies requirements for the field of vision from the helm position, forward and astern, in small engine-driven craft of hull length up to 24 m. The following craft are exempt from the application of this International Standard: - sailboats; - tiller-steered craft (2.9) with maximum speed less than 10 kn (10 knots). NOTE: Small engine-driven craft can be operated in a manner and at certain speeds causing trim angles such that vision forward is temporarily obscured. This International Standard cannot assure that a craft can be operated without some temporary loss of vision from the helm position while operating at high trim angles during the transition from displacement to planing mode.