1 Licensing requirements for visitors - Govt site

"If you are a visitor to Nova Scotia and (a) you are at least 16, and (b) you already have a valid driver's licence from another part of Canada (or from another country), you can drive in Nova Scotia for up to 90 days without getting a Nova Scotia Driver's Licence. After that, you need a Nova Scotia licence."

Nova Scotia govt Driver Licensing and Vehicle registration

Information on licensing, testing and training requirements

OneStopCanada's Nova Scotia page

Independent Web site with driving and licensing information on Nova Scotia