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Asphalt Plants

Hot mix, warm mix, and cold mix asphalt plants may be eligible for a general permit if they only operate asphalt concrete production and the only sources of emissions, besides exempt equipment, are:

  • systems for drying aggregate;
  • systems for screening, handling, storing, and weighing hot aggregate;
  • systems for receiving, storing, and transferring virgin aggregate;
  • systems for receiving, crushing, screening, storing and transferring non-virgin aggregate;
  • systems for receiving, storing, and transferring asphalt cement;
  • systems for mixing aggregate with asphalt cement;
  • systems for the storing and dispensing of asphalt;
  • asphalt cement and fuel storage tanks;
  • auxiliary heaters (including hot oil heaters) with a heat input rate less than million each; and
  • associated emission control systems.


  • The facility is limited to hot mix asphaltic concrete production or other DOT approved methods as allowed in the permit
  • The maximum size for a single auxiliary heater (including hot oil heaters) is limited to less than 10 million BTU/hr rated input capacity.
  • All fuel fired sources at the facility are limited to using natural gas, propane, liquefied petroleum gas, fuel oil and/or recycled oil (with written approval from the Department) as fuel.
  • The emissions from all Batch Mix plants (pug mills) must be ducted to the dust control system and Baghouse

List of Asphalt Plants currently covered by a General Permit for Asphalt Plants

Interactive Map of Asphalt Plants


Emission Estimator Tools/Guidance:

Copy of the Permits:

**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.**

For more information please contact:

Hetal Patel - 803-898-03850