There are always product groups subject to restrictions:
Unlike the European Union, the United States does not have a single document that regulates all processes associated with the import and sale of goods.
⠀Before you start selling something, it is recommended that you initially opt for a product with minimal certification requirements.
⠀For the product itself, a certificate may not be needed; however, it may be necessary for one or more of its component parts - batteries, for example.
⠀Friends, when you are just starting a business on Amazon, be responsible for the choice of your goods, make your initial selection on something simple: a product that will not require certificates and multiple permits.