As others said, you need to check with the relevant country/state/province where you intend to drive. In Canada, for example, here are the rules for the provinces of Nova Scotia, British Columbia & Ontario. Basically no problem for 90 day visits for Nova Scotia & Ontario while British Columbia gives you a 6 month period.
[URL unfurl="true"]https://novascotia.ca/sns/paal/rmv/paal269.asp[/URL]
[URL unfurl="true"]https://www.ontario.ca/page/drive-ontario-visitors[/URL]
[URL unfurl="true"]https://www.welcomebc.ca/Start-Your-Life-in-B-C/Daily-Life/Driving-in-B-C[/URL]
If in doubt then the cost of the purchase of an IDP is only a minor, if very irritating, cost.
