FAQs

Emission Reduction Methods

• For what emission sources does the 1605(b) Program provide approved methods?
• How are emission methods rated?
• What is the minimum quality rating required for entities intending to register emission reductions?
• How do I estimate emission reductions?
• What is emissions intensity?
• What are absolute emissions?
• What is carbon storage?
• What are avoided emissions?
• What is the Energy Generation and Distribution (or integrated) method?
• What are action-specific methods to calculate reductions?
• What is the difference between the emissions intensity and absolute emissions reduction methods?
• Can the absolute emission method be used for power generation?
• Can I use more than one reduction calculation method to estimate reductions?
• Should large emitters intending to register reductions calculate emission reductions at the entity level?
• Should small emitters intending to register reductions calculate all emission reductions using the same method?
• How would an entity report reductions for landfill methane recovery if the entity were already reducing emissions in the Base Period?
• How would an entity report reductions for landfill methane if it closed a landfill, and therefore reduced its overall emissions?
• According to the 1605(b) geological sequestration guidelines, does the capture and sale of CO2 yield a reduction?