40 CFR §63.1179

1. (a)You must control emissions from each curing oven or combined collection/curing operations as specified in Table 2 to this subpart.
2. (b)You must meet the following operating limits for each curing oven or combined collection/curing operation:
   1. (1)Maintain the free-formaldehyde content of each resin lot and the formaldehyde content of each binder formulation at or below the specification ranges of the resin and binder used during the performance test.
   2. (2)Maintain the operating temperature of each incinerator so that the average operating temperature for each three-hour block period never falls below the average temperature established during the performance test.