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 Reserve Sale 33 Will Not Be Held AB 32 GHG Emissions Inventory 2026 Edition Documents November 2026 Joint Auction #49 Notice