Pulping system
Pulping system means all process equipment, beginning with the digester system, and up to and including the last piece of pulp conditioning equipment prior to the bleaching system, including treatment with ozone, oxygen, or peroxide before the first application of a chemical bleaching agent intended to brighten pulp. The pulping system includes pulping process condensates and can include multiple pulping lines.
Source
40 CFR § 63.441
Scoping language
All terms used in this subpart shall have the meaning given them in the CAA, in subpart A of this part, and in this section as follows: