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Hazardous wastes (Bhgdd)

Computer viruses ()
Transportation operations (B)
     Related Term (Associative): Management and organization (C)
    Commodities (Bh)
         Use For: Freight commodities
        Commodity groups (Bhg)
            Hazardous materials (Bhgd)
                 Related Term (Associative): 
                Hazardous wastes (Bhgdd)
                Radioactive materials (Bhgdr)
                Radioactive wastes (Bhgdw)