NSPS for Kraft Pulp Mills (40 CFR Part 60, Subpart BB) (Renewal)

The New Source Performance Standards (NSPS) for Kraft Pulp Mills apply to the following facilities at kraft pulp mills: recovery furnaces, smelt dissolving tanks, lime kilns, digester systems, brown stock washer systems, black liquor oxidation systems, multiple effect evaporator systems and condensate stripper systems that were constructed, modified or reconstructed after the date of proposal. In pulp mills where kraft pulping is combined with neutral sulfite semi-chemical pulping, the provisions of 40 CFR Part 60, Subpart BB are applicable when any portion of the material charged to an affected facility is produced by the kraft pulping operation. Facilities may be exempt from the total reduced sulfur (TRS) standard if the facility can demonstrate that TRS emissions from a new, modified, or reconstructed brown stock washer can be neither technically nor economically feasible to control. In general, all NSPS standards require initial notifications, performance tests, and periodic reports by the owners/operators of the affected facilities. They are also required to maintain records of the occurrence and duration of any startup, shutdown, or malfunction in the operation of an affected facility, or any period during which the monitoring system is inoperative. These notifications, reports, and records are essential in determining compliance with 40 CFR Part 60, Subpart BB.

The latest form for NSPS for Kraft Pulp Mills (40 CFR Part 60, Subpart BB) (Renewal) expires 2022-03-31 and can be found here.