For interior spaces, the de minimis area limit in de minimis calculations is up to how many square feet in any one interior room or space?

For interior spaces, the de minimis area limit in de minimis calculations is up to how many square feet in any one interior room or space?

• A. 2 square feet
• B. 5 square feet
• C. 10 square feet
• D. 20 square feet

Answer: (A)

The key idea is that some renovation work can be done with minimal extra precautions if the amount of paint disturbed is very small. For interior spaces, the de minimis threshold is 2 square feet per room. That means if you disturb two square feet or less of lead-painted surfaces in a single interior room or space, the work is considered de minimis and does not trigger the full lead-safe renovation requirements. If you disturb more than that in any one interior room, you must follow the standard lead-safe practices, including containment, dust control, and proper cleanup. The limit applies to each interior room separately, not as a total for the whole house. For contrast, exterior work has a higher de minimis limit (about 20 square feet), which is why the interior figure is the smaller one.

The key idea is that some renovation work can be done with minimal extra precautions if the amount of paint disturbed is very small. For interior spaces, the de minimis threshold is 2 square feet per room. That means if you disturb two square feet or less of lead-painted surfaces in a single interior room or space, the work is considered de minimis and does not trigger the full lead-safe renovation requirements. If you disturb more than that in any one interior room, you must follow the standard lead-safe practices, including containment, dust control, and proper cleanup. The limit applies to each interior room separately, not as a total for the whole house. For contrast, exterior work has a higher de minimis limit (about 20 square feet), which is why the interior figure is the smaller one.