Janetflight,
It's not a legal requirement to have the airframe insured, therefore you don't have to carry the document with you. But you will find airports, FBO's etc. will require you to have insurance.
Having planned and dispatched trips globally, I can attest to the fact that certain countries will require hull and liability insurance paperwork.
We used to photocopy the required paperwork, have it notarized and place it in the aircraft folder. All our paperwork was in English, but I know we had to get an Arabic version once. Go figure.
With my $0.02 for the price of a photocopy, you can't go wrong to have a couple of extra pages in the A/C folder.