text: However , if neither the Allowance Tracking System regulations nor the allocation regulations are timely promulgated , then the second default applies under which each affected EGU is required for the year involved to meet an emission rate limit of 0.14 lb / mmBtu for units in Zone 1 or 0.25 lb / mmBtu for units in Zone 2 .
  
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  They did not regulate the emissions in any of the Zones .