ms. mccabe for being with us. i want to start out, as my colleague from north carolina was pointing out. basically, the concerns we have in north carolina. just in our home state alone, this rule will kill over 13,000 jobs a year and decrease the state's gdp drastically at a time when we can afford it the least. this proposal raises serious concerns. i look forward to this discussion. i definitely have some questions for you, starting off with in september of 2011, president obama requested that your agency withdraw its proposed ozone standard based on his, quote, concerns about the importance of reducing regulatory burdens and regulatory uncertainty, particularly as our economy continues to recover, end quote. your agency agreed to withdraw the proposed standard, and now you're issuing the revised standard. can you tell us what changes you made to decrease the regulatory burden which now allows you to move forward? >> first, let me explain that at that time, the agency was engaged in a reconsideration of the 2008