Which methodology should be used when conducting an inspection?

Starting in the A/D (Access and Distribution) corner of each room is the appropriate methodology for conducting a lead inspection. This approach allows the inspector to systematically cover the entire area of the room while ensuring that all potential lead exposure surfaces, especially those that may be overlooked if starting from a different point, are identified.

Inspecting from the A/D corner helps establish a consistent starting point, which facilitates a thorough evaluation of surfaces such as walls, windows, and floors in a logical and organized manner. This methodical approach reduces the likelihood of missing significant lead hazards, which is crucial for ensuring occupants' safety and compliance with regulations.

The other methodologies suggested, such as beginning from the center of the room or only focusing on corners, may lead to an incomplete inspection, as they do not ensure that all areas of potential lead contamination are assessed. Random inspection patterns can result in important areas being missed entirely, thus compromising the effectiveness of the inspection process.