40 CFR §60.442

1. (a)On and after the date on which the performance test required by § 60.8 has been completed each owner or operator subject to this subpart shall:
   1. (1)Cause the discharge into the atmosphere from an affected facility not more than 0.20 kg VOC/kg of coating solids applied as calculated on a weighted average basis for one calendar month; or
   2. (2)Demonstrate for each affected facility;
      1. (i)A 90 percent overall VOC emission reduction as calculated over a calendar month; or
      2. (ii)The percent overall VOC emission reduction specified in § 60.443(b) as calculated over a calendar month.