What document should all boilermakers reference for safety standards?

The National Board Inspection Code (NBIC) is the correct reference for boilermakers regarding safety standards because it specifically addresses the rules and guidelines applicable to the design, fabrication, installation, inspection, and repair of boiler systems. This code is essential for ensuring safety and reliability in boiler operation, providing a comprehensive framework that professionals in the industry are expected to follow.

Boilermakers must adhere to the practices laid out in the NBIC to maintain compliance and minimize risks associated with boiler usage. This document encompasses critical details on maintaining safety protocols, conducting inspections, and ensuring that all equipment meets the established standards for operation.

While the other documents mentioned do play important roles in workplace safety and environmental considerations, the NBIC is uniquely tailored to the needs and operations of the boilermaker trade, making it the most relevant reference for ensuring safety standards specific to this field.