Part of the answer to that question lies in having standing offers for commodities that are mandatory and that people will use. Of course, those don't cover everything.
The policy on green procurement does make deputy ministers responsible for undertaking this work. We have also, as a community, developed tools, training, etc., to help the individual departments put this in place.
The guidance document that we've produced for the sustainable development strategies did identify that every department should identify at least three targets in their sustainable development strategy. They need to report on those through their departmental performance reports, their DPRs, on an annual basis.