In cases where the supplier is not certified GM p, but can refer to the accepted standards such as the TIS and AIS, and there is a guide in sensitive areas to work in.
If the supplier is not certified GMP. You can refer to comply with accepted standards, such as ISO. The ISO and a guide to practice in areas vulnerable to harm.
If the supplier is not certified GM system. But can refer to follow acceptable standards, such as tis and ISO and guide to working in the area of risk hazards.