State of California
Air Resources Board

Agenda: Public Consultation Meeting on
Compliance Flexibility in Gasoline Regulations

April 7, 1998

Introductions

Background and statement of purpose

Cap limits

• Requested changes
  
  

• Concerns of automakers
  
  
• Random-balance with higher caps

Developing Evaporative Model

• ARB work on diurnal, hot-soak, and standing losses
  
  
• Running loss
  
  
• Benzene model
  
  
• Integrating evap. and exhaust model results
  
  
  -- scaling
  -- reactivity consideration

Winter Oxygen Requirement

Modifying Exhaust Model

• Need and timing for new model work
  
  
• New data for Tech 3 and Tech 4
  
  
• Possible changes in structure and development of models
  
  
  -- Tech 5"
  -- reactivity
  -- other