Sawmill Operation

A sawmill is where logs (greenwood) are cut into lumber. Sawmill operations may be eligible for coverage under the registration permit or the general state operating permit if the facility is comprised of the following:

  • Debarking;
  • Decking;
  • Sawing;
  • Planing;
  • Edging;
  • Trimming;
  • Drying;
  • Loading of lumber and wood residue;
  • Wood preserving;
  • All associated equipment such as cyclones, baghouses, engines, tanks, and other department approved sources and activities; 
  • Surface finishing of woods and all associated finishing materials and control devices such as paint booth filters, cartridges, etc.; and
  • Sources exempt under S.C. Regulation 61-62.1, Section II(B).


General State Operating Permit

  • The facility does not make panel products, plywood, veneer, particleboard, medium density fiberboard, hardboard, oriented strand board, waferboard, wood shavings, or engineered (composite) wood products.
  • Sources can only be fired on natural gas, propane, virgin No. 2 fuel oil, virgin diesel, clean untreated wood, biodiesel, and other department approved fuels.
  • External combustion sources shall be fired on 0.5 wt% or less sulfur content diesel/No. 2 fuel oil.
  • Non-road diesel engines are fired on low sulfur (500 ppm or less) diesel and are certified by the manufacturer to meet EPA's non-road diesel engine emission standards/tiers (40 CFR 89 and 1039).
  • The maximum size for a single internal combustion source burning diesel is limited to 500 hp mechanical power output and a displacement of <10 liters per cylinder.
  • The maximum size for a single stationary external combustion source is limited to less than 100 million BTU/hr heat input capacity.
  • Facility is a true minor source.

How Do I apply for the General Permit?

To request coverage under the General State Operating Permit, select one of the following options:

Option 1: If your facility has already been issued an operating permit, download, complete, and submit the State Operating and Conditional Major Permit Renewal Application with the General State Operating Permit box selected and “Type” Sawmill Operations selected.

Option 2: If your facility has completed construction and has not been issued an operating permit, download, complete, and submit the Operating Permit Request to request your initial operating permit.