PL(product liability) is a major social, market, and economic force. The legal obligation of manufacturers and sellers to compensate for injury or damage caused by defective products is not a recent phenomenon. The concept of Product liability has been in existence for many years, but its emphasis has changed recently. This PL prevention program has shown that the two area of product quality assurance one is a PLD(product liability defense) and the other is a PLP(product liability prevention.