Is it true that a person holding a Class IV or Class V license is required to supervise someone with a Class VI license?

A person holding a Class IV or Class V license is indeed required to supervise someone with a Class VI license. This requirement is in place to ensure that individuals engaged in pressure piping work are adequately monitored and guided by someone with a higher level of expertise and training.

The role of the supervisor involves ensuring that proper practices and safety protocols are followed, which is critical in pressure piping where mistakes can lead to significant safety hazards. The structure of licensing aims to create a clear hierarchy in skill levels and responsibilities to maintain safety standards within the trade. Therefore, having a Class IV or V license holder supervise a Class VI license holder provides a necessary level of oversight that helps ensure compliance with regulations and encourages skill development for those with less experience.