In its entirety we talk about seven years, but the reality is that there is a two-year notification stage plus a seven-year gradual phase-in. We are at 2016 right now and it's going to be fully phased in by 2025, so that's close to a decade. Without speaking for the minister who, with his colleagues, agreed to this in June, something in that order of magnitude was viewed as something that would allow Canadian businesses as well as individuals to prepare for an increase in costs. Having that gradual phase-in was viewed as allowing for industry and individuals to be able to absorb the modest contribution process.
On September 19th, 2016. See this statement in context.