Which action follows a successful visual inspection showing no visible dust or debris?

• A. Lead dust clearance testing can begin
• B. Abatement must begin
• C. Interior open dust cannot proceed
• D. Exterior sealing is performed

Answer: (C)

The main idea here is sequencing and containment after cleaning. When a visual inspection shows no visible dust or debris, the area is considered clean and containment should be preserved. Continuing interior dust-generating tasks right away risks displacing or re-aerosolizing any remaining contaminants, which would defeat the purpose of the cleaning and permit recontamination. Therefore, interior open dust cannot proceed. The next steps would normally involve verifying cleanliness with dust clearance testing and only resuming interior work or occupancy once clearance meets the required standards. Exterior sealing and other actions are separate phases and not the immediate follow-up to a successful interior visual pass.