Since 1994 we have been registered as an ISO Certified company. Currently, we are registered as ISO-9001:2008, the most recent certification possible for our needs, through N.Q.A. (National Quality Assurance).
From the website nqa-usa.com: ISO 9001:2008 specifies quality system requirements to be used where an organization requires the ability to consistently provide conforming products, either material or services to meet a customers expectations. The requirements are aimed at achieving customer satisfaction by preventing nonconformances.
The ISO 9001:2008 standard provides a model on which an organization may build an effective quality management system.
Essentially, having ISO allows us to follow pre-arranged guidelines and ideas to monitor quality, production, inventory and all other facets of a production plant. The goal is to avoid problems before they happen. Since we have successfully implemented ISO based systems, we have rarely had items rejected, and never more than once.