It's voluntary. It's something for which, in terms of compliance, we would hope, with proper reporting of both their commitments and their progress in meeting their commitments, there is some accountability on their part.
The model is one whereby we're providing leadership through calling the meetings, through making suggestions, through lending our technical expertise, but at the end of the day it is those departments that are going to be reducing their environmental footprint. They are making the commitments, and they're going to be accountable to parliamentarians for their progress in that regard.