What type of inspection is necessary before conducting dust sampling?

An initial comprehensive inspection is necessary before conducting dust sampling because it provides a thorough assessment of the property to identify potential lead hazards. This inspection involves systematically evaluating the entire premises for lead-based paint and its deterioration, as well as any other risks associated with lead exposure.

By completing a comprehensive inspection first, the inspector can gather critical data necessary to understand where lead hazards are present, which surfaces need to be sampled, and the areas of greatest concern. This foundational knowledge ensures that dust sampling is conducted in a targeted and effective manner, maximizing the accuracy of the results and helping to inform any necessary remediation actions.

In contrast, a routine visual inspection would not provide the comprehensive data required, while a follow-up inspection is typically conducted after remediation efforts. An external compliance check may focus on adherence to regulations rather than directly assessing lead hazards, making it unsuitable for determining where dust sampling should occur.