District Fuel Combustion Methodologies - Services and Commercial Contacto Correo electrónico charanya.varadarajan@arb.ca.gov Teléfono (279) 208-7320 Districts MethodologiesSacramento Metropolitan Air Quality Management DistrictCommercial Combustion - Diesel (July 2002)Commercial Combustion - Natural Gas (November 2002)San Joaquin Valley Air Pollution Control DistrictCommercial Combustion - Diesel (November 2008)Commercial Combustion - Natural Gas (November 2008)