Products liability doctrine holds a manufacturer, or other party involved in selling a product, strictly liable when an article, placed into the market with knowledge that it is to be used without inspection for defects, proves to have a defect that causes a personal injury. Consumers who are injured because of a fault with a product that the consumers had no ability to protect themselves against may recover against the manufacturer under a theory of products liability.
Challenge (formerly, Challenge Mills) is an unincorporated community in Yuba County, California. It is located on Dry Creek 30 miles (48 km) northeast of Marysville, at an elevation of 2595 feet (791 m). A post office opened at Challenge in 1895.