paper and other web coating mact summary

5. What are the emission standards for affeced sources under this rule?

In the rule, the emission limits are expressed in three formats based on whether HAP emissions are measured in terms ofmass of organic HAP applied, mass of coating material applied, or mass of coating solids applied. Affected sources may choose to comply with any of these formats (referred to as the ‘‘emission limits’’).

The three HAP emission limits for existing affected sources are:

• limit emissions to no more than 5 percent of the mass of organic HAP applied each month (95 percent reduction);
• limit the total mass of organic HAP in coating materials, or the total mass of organic HAP emitted, to no more than 4 mass percent of the total mass of coating materials applied to the web substrate each month; or

• limit the total mass of organic HAP in coatings, or the total mass of organic HAP emitted, to no more than 20 mass percent of the total mass of coating solids applied to web substrates each month.

The three HAP emission limits for new affected sources are:

• limit emissions to no more than 2 percent of the mass of organic HAP applied each month (98 percent reduction);
• limit the total mass of organic HAP in coating materials, or the total mass of organic HAP emitted, to no more than 1.6 mass percent of the total mass of coating material applied to the web substrate each month; or

• limit the total mass of organic HAP in coatings, or the total mass of organic HAP emitted, to no more than 8 mass percent of the total mass of coating solids applied to web substrates each month.

It is important to note that affected facilities may also be subject to other existing or future rules, such as new source performance standards (NSPS) and State rules requiring reasonably available control technology limits on VOC emissions. All applicable rules must be complied with.  Duplicate requirements for recordkeeping and reporting and differences in emission limitations may be resolved though the facilities Title V permit.