🔍 Key Concepts

• 46 CFR requirements for boiler stamping and markings • Purpose of a nameplate or identification plate on pressure vessels • Where an inspector would most logically look to verify maximum allowable working pressure (MAWP)

💭 Think About

• If you were a Coast Guard inspector, where would you want the maximum allowable working pressure clearly and permanently marked so it can’t be easily altered or obscured? • Which of these locations is typically used for permanent manufacturer data, such as serial number, design pressure, and maker’s name? • Which parts listed are more likely to be replaced or modified during the boiler’s life, and which are intended as permanent identification points?

✅ Before You Answer

• Verify which component usually carries the manufacturer’s identification and design data on a pressure vessel or boiler. • Consider which choice would be least likely to change during normal maintenance or retrofits. • Think about where regulations would require a permanent, legible marking that remains with the boiler for its entire service life.