Which scenario would most likely require secondary containment?

• A. A glove bag covering a tiny corner less than 1 sf.
• B. A glove bag on a surface under 150°F but under 1 sf.
• C. A glove bag on a 2 sf area with no temperature constraints.
• D. A glove bag over 3 sf or 3 lf, triggering containment.

Answer: (D)

The main idea here is that larger glove bags raise the risk of material escaping and spreading contamination, so an extra level of containment is required once size crosses a certain threshold. When a glove bag covers more than about three square feet or extends beyond three linear feet, secondary containment is needed to catch any leaks or drips and to keep the surrounding area protected. This extra barrier helps prevent dispersal of asbestos-containing material during removal.

The other scenarios stay below that size threshold, so the additional containment isn’t mandated by typical rules for glove bags in this context. They’re considered small enough that the glove bag itself serves as the primary containment without needing an additional layer.