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Air Quality

Wood Working Operations

Registration permits are issued to sources where equipment similarities and simplicity remove the need for in-depth site-specific review. Additionally, these permits contain the same emission limits and monitoring requirements as the construction and operating permit for that source category.

Advantages to Registration Permits

  • A standardized permit providing consistency
  • Dual permitting process construction and operating permit combined
  • No construction permit P.E. signature required for registration permits
  • Simplified application and permit issuance
  • Flexibility to construct or modify equipment without a construction permit
  • Pre-determined equipment and emission limit for specific Permit categories

Existing permitted and new sources may request coverage under a registration permit if the permit criteria are met. The BAQ will grant the registration permit to your facility upon your certifying qualification for and agreeing to the conditions and terms of the registration permit applicable to similar sources. Your facility will be subject to enforcement action for operation without a valid permit if the facility is later determined not to qualify for the conditions and terms of the registration permit.

Below is a description of each of the registration permits, a link to the list of the current facilities that have been granted coverage, a copy of each registration permit, and the associated criteria, forms, and other information for each registration permit.

Wood Working Operations

Wood working operation means any operation involving the generation of small wood waste particles (shavings, sanderdust, sawdust, etc.) by any kind of mechanical manipulation of wood or wood byproducts. It includes, but is not limited to, sawing, planing, chipping, shaping, moulding, hogging, lathing and sanding and all applicable control devices such as baghouses, cyclones, and portable dust collectors or any internal combustion engines that may be used to power the wood working equipment.  Additionally, it covers any wood working waste transfer or collection units such as silos, cyclones, trailers, conveyors, etc.  Some wood working facilities also conduct surface finishing.  This permit also covers the surface finishing of woods and all applicable finishing materials, control devices such as paint booth filters, cartridges, etc, and dryers, burn-off and curing ovens that may be used during the drying process.  Sources that conduct onsite lumber or chip drying prior to machining can not be permitted under this registration permit.

  1. Sources can only be fired on natural gas, propane, virgin No. 2 fuel oil, virgin diesel, Biodiesel that meets ASTM D6751or any other Department approved fuels. The use of any non-specification oil, hazardous waste, or any other waste chemical as a fuel or any addition of these items to the fuel shall not be allowed.  External combustion sources shall be fired on low sulfur (0.05 wt% or less) diesel/No. 2 fuel oil and the diesel engines shall be fired on ultra low sulfur (0.0015 wt% or less) diesel.
  2. The maximum size for a single external combustion source burning fuels other than natural gas and propane is limited to 20 million BTU/hr heat input capacity.
  3. The maximum size for a single internal combustion source burning fuels other than natural gas and propane is limited to 600 hp mechanical power output and a displacement of <10 liters per cylinder.
  4. Facility wide potential to emit is less than any major source thresholds as defined in Title V, NSR, PSD, and Section 112.
  5. Option A: Use less than 2667 gallons per 12 month period of HAP containing materials used for surface coatings, touchup and repairs, washoff operations, cleaning, and any other surface finishing materials containing HAP
    Option B: Facility-wide HAP emissions of less than 10 tons of any one hazardous air pollutant and less than 25 tons of any combination of hazardous air pollutants per 12-month periods.

The following wood working tools are exempt from the requirement to obtain a construction permit.  However, they are subject to the applicable conditions as outlined in the Registration Permit for Wood Working Operations:

  1. Hand Sanders
  2. Hand Saws (chain saw, hand drills, etc.)
  3. Hand Distressing Tools (chisel, etc.)
  4. Equipment used for boring, notching, etc.
Emission Tools:
Copy of the Permit:
Registration Permit for Wood Working Operations

**Note that these copies are provided for use by facilities that have already been granted coverage by the Bureau. Download and use of these permits does not constitute coverage.**
Additional Resources

If the operations covered by construction permits are located in one of the eight coastal counties of the Coastal Zone under DHEC-OCRM's jurisdiction (Beaufort, Berkeley, Charleston, Colleton, Dorchester, Georgetown, Horry and Jasper), then a coastal zone consistency certification may be required.

For more information please contact the Bureau of Air Quality at (803) 898-4123 or by email.