you do not indicate which insurance you have but I assume it is similar to mine. You should have a web account with the company that holds your liability insurance. Once there, you should be able to find a place where your insurance documents are stored. They usually are in PDF format, and you can download them to your computer and print or forward.
I would contact my insurance provider – I’m sure it’s available online or they can just send you a hard copy. I would try their website first.