A mentality of 'let the buyer beware' represents a threat to modern society that can't be overlooked. Many companies begin work on this element by evaluating the quality systems of their sub-suppliers and developing a list of approved suppliers. Bridget added that on-site audits of suppliers on your approved list are not necessary. You can have them fill out self-assessment forms, and analyze their percentages of conforming shipments over a period of time. This is not required in the standard, but a good idea, according to Bridget.
Assessors look for clear specifications for the product.
Methods covered in Paragraph 4.6.3 of the standard include type, class, and grade. Other methods may or may not be required, such as additional specifications, drawings, or inspection methods of the sub-supplier. The bottom line is that the purchase order should be stated in such a way that there is no possibility of any misunderstanding about what's being ordered. If you find you're sending shipments back, that should be a clue that your P.O.s are not specific enough. It does require agreement on all product requirements between a sub-supplier and the company.