What are the four required items on a pipeline marker?

The correct response highlights the essential components that pipeline markers must display for safety and regulatory compliance. The inclusion of the owner's name ensures that users can identify who is responsible for the pipeline, which is crucial during emergencies or maintenance concerns. The telephone number provides a direct line of communication for emergency responders or anyone needing to report hazards associated with the pipeline. Specifying the product being transported is vital for informing responders of the potential hazards they may face and for ensuring appropriate response measures are taken. The warning statement serves as a crucial alert for the potential dangers associated with the materials being transported, emphasizing the need for caution.

Each of these elements plays a significant role in ensuring safety and preparedness, particularly in emergency situations, and they collectively assist in promoting awareness about the material being transported through the pipeline.