AMAAPCD RULE 420 EXEMPTIONS TO RULE 419
LAST REVISED 11/11/11

Rule 420  Exemptions to Rule 419.  The Air Pollution Control
          Officer may exempt from the provisions of Rule 419 any
          of the following facilities or modifications with
          respect to a particular nonattainment pollutant or
          precursor:

     A.   Any new facility or modification which is not a major
          facility or major modification, providing such facility
          or modification will meet all other District Rules and
          Regulations, any applicable new source performance
          standard in 40 CFR Part 60 and any applicable national
          emission standard for hazardous air pollutants in 40
          CFR Part 61.

     B.   Any source of non-methane hydrocarbons, providing the
          owner or operator can demonstrate to the satisfaction
          of the Air Pollution Control Officer that the emissions
          from the proposed source will have no impact upon any
          area that exceeds the national ambient air quality
          standard for ozone.  This exemption shall be considered
          only for sources locating in rural areas where source
          emissions would not be likely to interact with other
          significant sources of non-methane hydrocarbons or
          nitrogen oxides to form additional ozone.

     C.   Any new facility or modification, providing the
          applicant can demonstrate to the satisfaction of the
          Air Pollution Control Officer that the proposed
          facility location will not be in violation of an
          applicable national ambient air quality standard as of
          the new facility or modification startup date.  Such an
          exemption shall be granted by the Air Pollution Control
          Officer only if the applicant presents a substantial
          and relevant argument (including any necessary
          monitoring data gathered in compliance with the
          provisions of 40 CFR Part 53) to substantiate the
          attainment status of the proposed source location.  To
          qualify for such exemption, the applicant must notify
          the Air Pollution Control Officer no less than 30 days
          prior to the initiation of any air quality monitoring
          effort.

     D.   Any source of temporary emissions.

     E.   Any source of carbon monoxide which the Air Pollution
          Control Officer determines would not cause a violation
          of any national ambient air quality standard for such
          pollutant at the point of maximum ground level impact.