For product safety and liability you need someone who is a direct report to the president, is not put in a conflict of interest sitiuation with other duties, most important all heads must follow the instruction of the individual and must be driven from the top. When you talk about liability it is not just product failure but liability limitation for your company and covers Labels, instructions, contracts and agreements with suppliers, dealers, reps, supplier control, recalls, design review, product safety, etc. Something that should be done without a standard requirement. The larger the revenue the greater the risk. Good Luck