These parts are a good value. They are quality products, made of similar materials to the original equipment (OE) part, but not exactly the same. They allow you to get a replacement product that will function just like the OE part at a discounted price. These parts have no certifications or third party evaluations but they are covered under the limited lifetime replacement warranty.
These parts are manufactured by a reputable factory. They are very close to OE quality and will function just like the OE part. They do not have certifications from CAPA nor are the facilities that manufacture them inspected on a regular basis, however these parts carry an independent certification that ensures the product's quality and performance.
Platinum Plus: These parts are manufactured to exacting specifications from selective suppliers to ensure the highest standards and the best warranty in the industry: a limited lifetime warranty. They are guaranteed to fit and maintain their appearance for as long as the owner has the vehicle. Suppliers of these parts meet all specifications and comply with all ISO (International Organization for Standards) standards. Platinum Plus parts undergo third party validations as well as internal testing to ensure that all guidelines are met. These manufacturers go through the same inspection procedures that CAPA certified companies undergo, but the inspections are performed by the manufacturer instead of an outside agency.
CAPA Certified: These parts are made by manufacturers that have submitted their products, facilities and manufacturing processes for review and inspection by an independent testing laboratory. Products are inspected and tested for quality, performance, integrity, corrosion resistance, material properties, fit and finish, among other things. Once the manufacturer and part become CAPA certified, they are subject to random inspections to make sure CAPA quality standards are maintained. More information about CAPA can be found at http://www.capacertified.org/process.asp. CAPA certified parts carry a limited lifetime replacement warranty.