For the purpose of determining attainment of the primary and secondary ambient air quality standards for ozone specified in Env-A 307.01, ozone in the ambient air shall be measured by either of the following:
N.H. Admin. Code § Env-A 307.03
#6227, eff 4-25-96; ss by #8054, eff 2-28-04; ss by #10173, eff 9-1-12