The University of Tennessee Institute for Public Service
A-Z Index / WebMail / Dept. Directory
Center for Industrial Services

MACT Rules

More Info




arrow

Plywood and Composite Wood Products (PCWP) NESHAP Summary


Main : 1 : 2 : 3 : 4 : 5 : 6 : 7 : 8

1. What Type Facilities and Process Units Are Subject to the Final Rule?

Plywood & composite wood productsThe final rule regulates HAP emissions from PCWP facilities that are major sources. Plywood and composite wood products are manufactured by bonding wood material (fibers, particles, strands, etc.) or agricultural fiber, generally with resin under heat and pressure, to form a structural panel or engineered wood product. Plywood and composite wood products manufacturing facilities also include facilities that manufacture dry veneer and lumber kilns located at any facility. Plywood and composite wood products include (but are not limited to) plywood, veneer, particle board, oriented strandboard, hardboard, fiberboard, medium density fiberboard, laminated strand lumber, laminated veneer lumber, wood I-joists, kiln-dried lumber, and glue-laminated beams. “Process unit” means equipment classified according to its function such as a blender, dryer, press, former, or board cooler.

Categories and entities potentially regulated by the PCWP MACT rule include:
Category Rule SIC code NAICS code Examples of regulated entities
Industry NESHAP 2421 321999 Sawmills with lumber kilns.
2435 321211 Hardwood plywood and veneer plants.
2436 321212 Softwood plywood and veneer plants.
2493 321219 Reconstituted wood products (particle board, medium density fiberboard, hardboard, fiberboard, and oriented strandboard plants).
2439 321213 Structural wood members, not elsewhere classified (engineered wood products plants).
Effluent Guidelines 40 CFR 429.11
2436
321212 Softwood plywood and veneer plants.
2493 321219 Reconstituted wood products (particle board, medium density fiberboard, hardboard, fiberboard, and oriented strandboard plants).


Process Units That Are Subject to the Final Control Requirements
Process Unit Categories Control Requirements?
  Existing affected sources? New affected
sources?
Softwood veneer dryers*; primary tube dryers; secondary tube dryers; rotary strand dryers; conveyor strand dryers; green rotary dryers; hardboard ovens; reconstituted wood product presses; and
pressurized refiners.
Yes Yes
Press predryers; fiberboard mat dryers; and board coolers. No Yes

Dry rotary dryers*; veneer redryers*; softwood plywood presses; hardwood plywood presses; engineered wood products presses; hardwood veneer dryers*; humidifiers; atmospheric refiners; formers; blenders; rotary agricultural
fiber dryers; agricultural fiber board presses; sanders; saws; fiber washers; chippers; log vats; lumber kilns; storage tanks; wastewater operations; miscellaneous coating
operations (including group 1
miscellaneous coating operations *); and stand-alone digesters.

No No

Raw materials - photo by William D. Boyer USDA Forest Service*These process units have work practice requirements in the final rule in addition to or instead of control requirements. Group 1 miscellaneous coating operations include application of edge seals, nail lines, logo (or other information) paint, shelving edge fillers, trademark/grade-stamp inks, and wood putty patches to PCWP (except kiln-dried lumber) on the same site where the PCWP are manufactured. Group 1 miscellaneous coating operations also include application of synthetic patches to plywood at new affected sources.

The affected source for the final rule is the combination of all PCWP manufacturing operations, including PCWP process units, onsite storage of raw materials, onsite wastewater treatment operations associated with PCWP manufacturing, and miscellaneous coating operations located at a major source facility. The PCWP final rule contains the control requirements that represent the MACT level of control for the entire facility. For lumber kilns not otherwise located at PCWP facilities, the final rule contains the control requirements that represent the MACT level of control only for lumber kilns.


Main : 1 : 2 : 3 : 4 : 5 : 6 : 7 : 8