My understanding of the whole paragraph (a) is that it says that when you have a climate change plan, there should be a description of any measure the government may decide to take. It doesn't have to do all four. It doesn't even have to do the most recent thing that is being suggested by Mr. Cullen.
But among the things it might consider would be such a transition fund. If it does that, this has to be a part of the report on the climate change plan. It doesn't mandate spending; it doesn't insist that there be such a fund. But this is the description of the kinds of things that, if the government chooses to undertake them, it has to report on as part of its plan.