Davis Instruments Quick Reference Navigation Rules Card 125A proven navigation tool used by the US Coast Guard, US Coast Guard Auxiliary, and US Power Squadron, the Davis Instruments Quick Reference Navigation Rules Card 125 is an essential resource for boat owners and ship captains. This durable plastic card provides a comprehensive guide to navigation rules, ensuring that you can quickly access the information you need.Product Features: Includes the US Buoyage System, Inland, and International Rules Covers right-of-way, lights, sound signals, and bridge signals Provides zones of approach, distress signals, and recognition of lights Offers passage signals at night Helps in understanding rules under certain circumstances Legible and concise presentation with colors and shading for easy navigation Full color on both sides Three-hole punched for binder or bulkhead mounting Weatherproof and made from durable plastic Measures 8 1/2 x 11 inches (22 x 28 cm) Specifications: Product: Davis Instruments Quick Reference Navigation Rules Card 125 Material: Durable plastic Dimensions: 8 1/2 x 11 inches (22 x 28 cm) Learn More:Expand your knowledge about navigation rules by visiting the following Wikipedia pages: US Buoyage System Inland and International Rules Right-of-Way Lights Sound Signals Bridge Signals