CDPH Lead Inspector/Assessor California State Practice Exam

Which of the following is HUD's de minimis threshold for exterior surfaces?

1. 10 square feet

2. 20 square feet

3. 30 square feet

4. 50 square feet

The correct answer is: 20 square feet

The de minimis threshold for exterior surfaces according to HUD is indeed 20 square feet. This threshold is significant as it establishes the point at which lead hazard evaluation and control measures must be considered when dealing with properties built before 1978. If lead-based paint is present on exterior surfaces exceeding this area, it may pose a risk of lead exposure, and thus appropriate actions must be taken to ensure safety. Understanding this threshold is crucial for professionals in lead inspection and assessment, as it influences the regulations and the necessary interventions that need to be applied in environments where lead paint is prevalent. The de minimis level helps streamline responses in housing and urban development practices by focusing resources where the risks of exposure are higher. This approach underpins the proactive management of lead hazards in residential properties, particularly those occupied by vulnerable populations such as young children and pregnant women.