Condition Guidelines: Some categories have guidelines that describe the condition of products that you list as new, used or refurbished. To find out more, see Condition Guidelines.
Style guides: Most categories have style guides that can help you create great product titles and descriptions. Category style guides are downloadable PDF files that contain site requirements for images, product descriptions and more. For information, see Product page style guides.
Products requiring additional approvals: Amazon’s policies require that certain products sold via Amazon meet specified certification standards. To find out more, see Products requiring additional approvals.
Required product identifiers: Most categories require a Global Trade Item Number (GTIN), such as a UPC, EAN or JAN, as a product identifier. You can request exemptions in certain categories. Find out more about Product UPCs and GTINs.