What document must a licensee provide upon completion of fire extinguisher servicing?

The correct response is the requirement for an itemized invoice upon completion of fire extinguisher servicing. This document is crucial because it details all the services rendered, including any parts replaced, repairs conducted, and the specific maintenance actions taken. By providing an itemized invoice, the service provider ensures transparency with the client, allowing them to see exactly what was done and any costs involved.

An itemized invoice serves not only as a record for the client but also helps in tracking maintenance history, facilitating future servicing needs, and ensuring compliance with safety regulations. It is especially important for businesses to maintain detailed records of maintenance for liability and insurance purposes.

While a warranty or a certificate of compliance may be important documents in other contexts, they do not fulfill the requirement for a detailed account of services rendered. A summary of services may provide a general overview, but it lacks the specificity and detailed accountability that an itemized invoice provides.