That's a good question. Not having authored that study, I will be a bit imprecise.
Carbon pricing and the minimum carbon price set at federal level would seem to be very important. Measures to encourage investment, perhaps through tax credits, can be very helpful. There are emissions trading schemes in some jurisdictions. I'm sure that there's promotion of EVs and many other measures. I would think that measures tied to timelines, achieving these targets and checking on progress on a regular basis are very important.
I recall 20 years ago, when Alberta started working on emissions trading based on an emissions intensity approach. At the time, it was brand new and seen as not quite that ambitious, but times have changed and it's got more ambitious. I think early action and building on that are a good recipe for success.