Components such as signage that do not impact system performance must?

The reasoning for considering that components like signage, which do not influence the performance of a sprinkler system, must not be listed revolves around the regulatory guidelines that differentiate between essential and non-essential components of fire protection systems.

Components that are critical to the operation and effectiveness of the sprinkler system, such as the actual sprinklers and control valves, must meet specific listing requirements to ensure they adhere to safety and performance standards. In contrast, signage serves an informational purpose rather than a functional one, meaning it is not inherently necessary for the system to operate effectively in case of a fire.

Therefore, since such signage does not affect the operational reliability of the sprinkler system, it is not mandated to be listed. This distinction highlights the focus on ensuring that essential components are certified while allowing for non-critical elements to remain unregulated in this manner, thereby streamlining compliance and implementation processes in accordance with fire safety codes.