Abstract
This chapter describes how human factors and ergonomics specialists have increasing filled the role of a warning expert in civil litigation in recent years. Such litigation usually involves personal injury and product liability cases. This chapter reviews a few of the rules that govern product liability as it pertains to warning. The chapter then addresses several topics regarding the warning expert, including the expert's role, the definition of a warning expert, typical activities of a warning expert, and problems or issues associated with being a warning expert.