🔍 Key Concepts

• 46 CFR structure and how Parts are organized by subject (e.g., construction vs. inspection/testing) • Difference between rules for design and construction of piping/valves and rules for periodic inspection and testing while in service • What typically happens to sea valves specifically during a scheduled dry-docking

💭 Think About

• First, decide: is dry-docking work mainly about how the valve is built, or how it is inspected and tested after being in service? • Look up (or recall) which CFR Part title mentions periodic tests and inspections versus boiler, pressure vessel, or piping construction rules. • Ask yourself: during dry-docking, what are classification societies and the Coast Guard most interested in regarding sea valves—design standards or inspection requirements?

✅ Before You Answer

• Check which Part title explicitly refers to testing and inspection or periodic tests rather than just construction or material standards. • Match each Part number with what it mainly governs: boilers, pressure vessels, piping systems, or inspection and testing. • Verify which Part would cover items examined on a recurring schedule in dry-dock, such as sea chests and sea valves, rather than their original fabrication.