Under Level 2 internal containment, what is required at all doorways?

In a Level 2 internal containment setting, the primary focus is on preventing the spread of lead-contaminated dust and ensuring safety for both workers and occupants. The requirement for warning signs at all doorways serves a crucial role in this process. Warning signs communicate that hazardous materials are present, alerting individuals to the potential danger and the need for caution when entering or exiting the area. This helps in maintaining awareness and ensuring everyone in the vicinity is informed of the lead hazard.

While options like heavy plastic sheeting and construction barriers may serve specific containment purposes, they do not inherently fulfill the critical communication function that warning signs provide. Hanging curtains might also be used for containment; however, they are not as universally mandated as warning signs in this context. The inclusion of warning signs is vital in compliance with regulations and serves as an essential safety measure in managing lead exposure risks effectively.