What must follow the conclusion of a WDIIR in terms of action?

The conclusion of a Wood-Destroying Insect Inspection Report (WDIIR) requires that pest control services ensure treatments are recorded. This is crucial because documentation not only provides a detailed account of the findings and treatments recommended or executed but also serves as a legal record that can be referenced in the future. Comprehensive documentation helps promote transparency and accountability in pest management practices and protects both the service provider and the homeowner regarding any ensuing disputes or additional treatments that may be necessary.

While inspections and various management activities are essential components of pest control protocols, the immediate and specific requirement following a WDIIR is the recording of treatment services performed. Therefore, this option appropriately captures the necessary action that must follow the report.