The Albuquerque-Bernalillo County Air Quality Control Board will hold a public hearing on the proposed repeal of N.M. Code R. §20.11.90.12, Breakdown, Abnormal Operating Conditions, or Scheduled Maintenance; and replacement with N.M. Code R. §20.11.49, Excess Emissions. The proposed rule prohibits excess emissions for startup or shutdown unless they are the result of unavoidable and unforeseeable malfunctions. In addition, as part of the required analysis for excess emissions events, the rule would require a "root cause analysis." This would be a detailed technical analysis of excess emission events that determines the underlying reason(s) that the event occurred and all contributing factors to the malfunction, to the extent possible. The analysis would also require an evaluation of alternative measures (if any) that can be implemented to reduce the likelihood of a recurrence of an incident. The hearing will be September 9, 2009. http://www.nmcpr.state.nm.us/nmregister/xx/xx14/AirQualnotice1.htm.