What information must yellow tags contain according to the statute?

Yellow tags are vital in indicating critical information regarding a particular system, primarily focusing on system testing and limitations. This information is essential for maintaining safety norms and ensuring that anyone interacting with the fire suppression system understands its operational parameters and restrictions. By having a clear inscription regarding testing and limitations, it provides both compliance with regulatory standards and aids in effective risk management.

The other options do not align with the requirements set for yellow tags. Emergency contact details may be vital in other contexts but are not a standard requirement for yellow tags. Owner's personal identification details would not be relevant to the operational and safety focus of the tags. Similarly, while the date of installation and expected lifespan is important information regarding equipment maintenance and lifecycle management, it does not specifically pertain to the system testing and limitations that yellow tags must convey. Thus, the emphasis on system testing and limitations is why this answer is correct.