What may a lead project designer not do without certification?

A lead project designer, while having specific roles in managing lead hazard projects, cannot perform or supervise lead activities without proper certification. This is crucial because supervising lead-related work requires specialized knowledge of safety practices, regulatory compliance, and health risks associated with lead exposure. Certification ensures that the project designer has undergone the necessary training to manage the complexities involved in these activities and can make informed decisions that protect both the workers and the public.

In contrast, a project designer can create protected occupation plans or conduct risk assessments without needing to perform the hands-on or supervisory duties that require certification. Similarly, analyzing paint samples is a task that can be completed by qualified personnel or labs, allowing the designer to base their plans on accurate data without having to conduct the analysis themselves. Therefore, while they play an essential role in planning and assessing lead risks, the actual performance or supervision of lead activities is regulated and requires certification for legal and safety reasons.