ms. mccabe for your work on that. cpa didn't meet the statutory levels for some advanced biofuels allegedly because of the lack of production. we want to hear more about that. that really is what generated this discussion. senator ernst and i noted that such delays in setting up the program and setting annual volume obligations really did lead to stalled investments and advanced biofuels. had we had more certainty, we could have, i think, seen the kind of investment that it would have take ton get that product into the mark kit. >> gao found we won't meet for advanced bio fields on greenhouse gas to measures which arguably and do go hand in hand. this isn't surprise org even new as we acknowledge that last year's hearing. it was part of the disruption we saw in the marketplace as a result of uncertainty from earlier decisions. fortunately, they made contingency plans if they found the industry wasn't ready to meet these targets. they allow epa to reduce the annual obligations. this is why having annual rules setting i

ms. mccabe, for your good work on that. we're granf we're grateful. allegedly because of the lack of production and we want to hear more about that and that really is what generated this discussion today. senator ernst and i noted in last june in setting up annual volume obligations really led to stalled investments. so had we had more sin the in the market we even seen the kind of product into the market. the reports we're reviewing today don't necessarily come as a surprise. we find they won't come as a surprise or greenhouse gas reductions t two measures which arguably go hand in hand. again, this isn't surprising or even new as we acknowledged at last year's hearing it was part of the disruption that we saw in the marketplace as a result of uncertainty from earlier decisions. fortunately the authors of the rfs made contingency plans if they found the wasn't ready to meet these targets. this is why having annual rules setting is helpful. although it brings a level of uncertainty. we can adjust course when it's absolutely necessary. the authors put

ms. mccabe, you are in the process of dealing with the requirements for ozone and every era quality, at the same time you are dealing with the rfs. we talked about the conflict between the two. help me catch up on where the conversation is going right now. because as you produce more ethanol it produces more ozone in those areas in the production part of it, at the same time we did it with reducing ozone nationwide as well. >> yeah, so back in 2010 when we did our analysis, we would put the rule in place we did note that there were places and times where ozone air quality could be increased. it's not uniform. it's not across the board. it's not necessary in place of where the ozone standard is not met already. so those are all complicating factors. senator, i think we are about what we were last time, which is that states and cities are working to meet the ozone standard. most of those areas that ozone nonattainment areas are large metropolitan areas, and so the contributors to ozone are overwhelmingly motor vehicles, generally, industry power plants and large emitters. but i'm not, sorting