How to get bottles certified?

how do you get a certification for your bottles? Now I just buy a few hundred at a time from a Chinese vendor off eBay. Now do all I do is email the vendor and ask for a certificate. I don’t even fully understand exactly what this technically even means? Do the bottles just have to be on paper that there child proof?

they have to get their bottles certificated not just the label saying that they are child proof. If your selling them with out it now actually can be bad for you. I would look online to see how to get that kind of stuff certificated for your shop or what ever your doing with them. becareful