"Attainment area" means "attainment area" as defined in the US EPA's proposed Model Open Market Trading Rule (60 FR 39668, August 3, 1995), namely, "any area of the country designated or redesignated by EPA at 40 CFR part 81 in accordance with section 107(d) of the Act as unclassifiable or better than the national ambient air quality standards for ozone," including, Belknap, Cheshire, Sullivan, Carroll, Grafton, and Coos Counties.
N.H. Admin. Code § Env-A 3102.06
#6441, EXEMPT, eff 1-21-97