Who must sign all shop drawings according to the regulations?

The requirement for a Type PL licensee to sign all shop drawings is grounded in their specific training and regulatory authority related to fire protection systems. A Type PL licensee is particularly qualified to assess and validate the designs and installations of fire protection systems, which includes the review and signing of shop drawings that outline how these systems will be implemented in a given project.

This role is crucial because shop drawings provide the detailed plans that demonstrate compliance with safety regulations and standards. Since fire protection systems are essential for ensuring safety in buildings, it is imperative that only those with the appropriate qualifications and knowledge—like a Type PL licensee—validate such designs.

While licensed engineers and registered architects may have their own qualifications in design and construction, the specific requirements for fire protection systems necessitate a particular expertise that a Type PL licensee provides. This ensures that the systems designed meet all safety codes and functions effectively within the intended environment. Therefore, having a Type PL licensee sign off on shop drawings is a regulatory measure that upholds safety and compliance in construction projects.