Which items must be included on a service tag for fire extinguishers?

The service tag for fire extinguishers is a vital document that provides essential information regarding the maintenance and service history of the device. This tag must include the firm name of the service provider, the license number of the technician, the date of service, and details of the services performed. This information ensures accountability and traceability, allowing users to verify that the extinguisher has been properly maintained and serviced by a qualified professional.

Including the firm name and license number helps to establish the legitimacy of the service provider, while the date of service offers a clear timeline of when the extinguisher was last inspected or serviced. The record of services performed informs users about the specific maintenance tasks that have been completed, such as refilling or repairs, which is crucial for determining the operational status and reliability of the fire extinguisher in emergencies.

While the other options may contain useful information, they do not cover the mandatory components required on a service tag, making the inclusion of the firm name, license number, date, and services the most accurate and comprehensive answer regarding what must be documented.