For certain products, brands, categories, and sub-categories, Amazon requires sellers to obtain approval before listing products for sale. This process may include document requests, performance checks, and other additional qualifications. The current categories and products that require approval include postage stamps, collectible coins, personal safety and household products, entertainment collectibles, fine art, holiday selling requirements in toys and games, jewelry, Amazon subscription boxes, made in Italy, Music and DVD, requirements for selling automotive and powersports products, services, sports collectibles, streaming media players, video, DVD and Blu-ray, and watches. It is also important to note that some categories also require an application fee. For a comprehensive list of product categories on Amazon, click here. You will need to log into your seller account to view this list.