Certificates for children toys and products with batteries

Hi,

I’m monitoring products to sell on Amazon.

There are categories that need certifications:

children toys,

products containing batteries.

What I need to do if I want to sell these groups (step by step)?

Certificate I need to get from a producer? Or I need somehow to certificate it here in the USA?

Who knows, please, give me a guidance.

Thank you

Start with products that don’t require any certifications for now, such as books or home & kitchen. You can do other categories later, once you develop some trust from Amazon.