Sure. What you'll do is have your husband call in to Koodo to initiate a transfer of ownership. Once he gives his authorization for you to take over, you can either talk with the agent during the same phone call or call back within 5 to 10 days (can't remember which). Have some IDs ready, because they'll do a credit check to ensure you can take over the Tab/plan.
I think there's a $25 fee for this that will show on your first invoice.