Exclusion(s): Establishments primarily engaged in:

*mining or quarrying dimension stone (21231, Stone Mining and Quarrying); *operating sand and gravel pits and dredging for sand and gravel (212323, Sand and Gravel Mining and Quarrying); *mining or quarrying shale and mining, beneficiating or otherwise preparing clays and refractory minerals (212326, Shale, Clay and Refractory Mineral Mining and Quarrying); *mining diamonds of industrial or gem quality (212392, Diamond Mining); *mining salt or in the recovery of salt from brine wells (212393, Salt Mining); *mining, beneficiating or otherwise preparing asbestos (212394, Asbestos Mining); *mining, beneficiating or otherwise preparing gypsum (212395, Gypsum Mining); *mining, beneficiating or otherwise preparing potash (212396, Potash Mining); and *extracting and processing peat (212397, Peat Extraction).