IPCC Tier 2b Emissions Calculation Methodology Categorías Topics Climate Change, Industry & Manufacturing Programs Semiconductor Tipo Information Contact Semiconductor Correo electrónico semiconductor@arb.ca.gov Teléfono (279) 208-7884 The Regulation to Reduce Greenhouse Gas Emissions from Semiconductor Operations requires the use of the Intergovernmental Panel on Climate Change (IPCC) Tier 2b emissions calculation methodology to calculate GHG emissions. Related Resources The 2018 Natural and Working Lands Carbon Inventory: Technical Support Document The 2018 Natural and Working Lands Carbon Inventory Carbon Impacts from Fire and Forest Management Activities