9 Va. Admin. Code § 5-40-2110 - Definitions
"Portland cement plant" means any facility manufacturing portland cement by either the wet or dry process.
"Process operation" means any method, form, action, operation or treatment of manufacturing or processing, including any storage or handling of materials or products before, during or after manufacturing or processing.
"Process unit" means any step in a manufacturing or process operation which results in the emission of pollutants to the atmosphere.
"Process weight" means the total weight of all materials introduced into any process unit which may cause any emission of pollutants. Process weight includes solid fuels charged, but does not include liquid and gaseous fuels charged or combustion air for all fuels.
"Process weight rate" means a rate established as follows:
§§ 10.1-1307 and 10.1-1308 of the Code of Virginia.
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