MARIPOSA COUNTY AIR POLLUTION CONTROL DISTRICT

RULE 422 - EXEMPTIONS TO RULE 421

The Air Pollution Control Officer may exempt from any of the requirements of Rule 421.C. any of the following facilities or modifications:

  1. Resource recovery sources burning refuse-derived or biomass-derived solid waste fuels,
  2. sources which must switch fuels due to a lack of adequate fuel supplies, and
  3. sources required to be modified as a result of Environmental Protection Agency regulations where no exemption from such regulation is available to the source. An exemption under this Rule shall not be granted unless:
    1. The applicant demonstrates that it made its best efforts to obtain sufficient emission offsets to comply with Rule 421.C. and that such efforts were unsuccessful; and
    2. The applicant has secured all available emission offsets and will continue to seek the necessary offsets and apply them when they become available.