Question 70 TV01 - Towing Vessels - Oceans or Near Coastal

The Correct Answer is A. **Why Option A ("199 GT towing vessel on an international voyage") is correct:** The requirement for carrying an efficient daylight signaling lamp (often referred to as a searchlight or Aldis lamp for signaling purposes) is mandated by the International Convention for Safety of Life at Sea (SOLAS). Specifically, SOLAS Chapter V (Safety of Navigation) requires vessels engaged in international voyages to carry this equipment. Option A describes a vessel (199 GT towing vessel) that is engaged in an **international voyage**, which triggers the application of SOLAS requirements, including the mandatory carriage of an efficient daylight signaling lamp. **Why the other options are incorrect:** * **B) 99 GT towing vessel on Inland Waters:** Vessels operating solely on U.S. Inland Waters are primarily governed by U.S. domestic regulations (e.g., those found in 46 CFR and 33 CFR). These regulations do not generally require an efficient daylight signaling lamp on small uninspected towing vessels operating exclusively inland. * **C) 199 GT towing vessel on a coastwise voyage:** While operating beyond the boundary lines, a "coastwise voyage" vessel is generally operating domestically (U.S. to U.S.). Unless specifically required by its certificate of inspection (which this question specifies is an *uninspected* vessel) or triggered by an international voyage, U.S. domestic regulations typically do not impose the SOLAS requirement for the daylight signaling lamp on this class and size of uninspected vessel. * **D) 299 GT towing vessel on a coastwise voyage:** Similar to option C, the designation "coastwise voyage" indicates domestic operation. Although the vessel is larger (299 GT), the lack of an international component means the specific SOLAS mandate requiring the daylight signaling lamp does not apply. (Note: The requirement to carry a signaling lamp is often tied directly to the application of SOLAS, which is triggered by the international nature of the voyage, not solely the GT of the vessel.)