4 0 the 2008 and 2009 projected inventories part ii of epa s rule to implement 8 hour naaqs requires washington dc md va ozone nonattainment region achieve a 15 percent reduction by using reductions in either voc or nox emissions with any combination two 1 also an inventory for attainment year is required must be calculated from anthropogenic levels reported 2002 base after those have been adjusted reflect expected growth between described chapter 3 this presents projection estimation years before consideration emission controls are derived applying appropriate factors guidance describes four typical indicators order priority these product output value added earnings employment surrogate activity example population acceptable methods round 7 cooperative forecasting results household
