>> thank you, congressman ensle. we would initiate role-making, as part of that, all stakeholders would have an opportunity to provide any proposals as to how to implement such a greenhouse gas performance standard. in doing so, there's a couple of ways it could be done. certainly in looking at the current emission permits from t the, from those, it's based on known items, such as model and configuration of generator, and mission and control equipment and composition of fuel and the approximate run time and the generator. you could take from that also the annual transmissions that are capped by a baseline used to determine compliance. we would take compliance from the current permit applications or new permit applications from generating stations and take that data, put it into a database. and ultimately, from that, use it to determine a greenhouse gas performance standard for a particular plants that were into the interconnect. >> so you can obviously do that for a particular plant. but could you effectively referen