Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
008	PERSONNEL AND LABOR RELATIONS MANAGERS	542
057	MECHANICAL ENGINEERS	205
235	TECHNICIANS, N.E.C.	78
365	STOCK AND INVENTORY CLERKS	1,609	408
453	JANITORS AND CLEANERS	12,416	1,285
505	AUTOMOBILE MECHANICS	4,189
507	BUS, TRUCK, AND STATIONARY ENGINE MECHANICS	1,108
515	AIRCRAFT MECHANICS, EXC. ENGINE	4,018
516	HEAVY EQUIPMENT MECHANICS	133
518	INDUSTRIAL MACHINERY REPAIRERS	1,330
519	MACHINERY MAINTENANCE OCCUPATIONS	911	716
544	MILLWRIGHTS	27
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	43
549	NOT SPECIFIED MECHANICS AND REPAIRERS	5,009	302
567	CARPENTERS	3,773
575	ELECTRICIANS	978
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	18
597	STRUCTURAL METAL WORKERS	1,367
633	SUPERVISORS, PRODUCTION OCCUPATIONS	134
637	MACHINISTS	2,639	29
694	WATER AND SEWAGE TREATMENT PLANT OPERATORS	2,552
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	256
704	LATHE AND TURNING MACHINE OPERATORS	6
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	1,502	985
717	FABRICATING MACHINE OPERATORS, N.E.C.	1,351
734	PRINTING MACHINE OPERATORS	4,939
744	TEXTILE SEWING MACHINE OPERATORS	10,892	10,892
764	WASHING, CLEANING, AND PICKLING MACHINE OPERATORS	158
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	490
769	SLICING AND CUTTING MACHINE OPERATORS	429
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	2,175
779	MACHINE OPERATORS, NOT SPECIFIED	15,654	4,489
783	WELDERS AND CUTTERS	232
784	SOLDERERS AND BRAZERS	12	6
785	ASSEMBLERS	6,912	2,992
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	3,953
804	TRUCK DRIVERS, HEAVY	3,958
825	RAILROAD BRAKE, SIGNAL, AND SWITCH OPERATORS	16
844	OPERATING ENGINEERS	1,812
848	HOIST AND WINCH OPERATORS	8,072
853	EXCAVATING AND LOADING MACHINE OPERATORS	762
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	844
878	MACHINE FEEDERS AND OFFBEARERS	367	245
883	FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C.	644
889	LABORERS, EXCEPT CONSTRUCTION	156
TOTAL		108,671	22,350

*(1) The estimates for each occupation apply across the surveyed industries in which the agent was observed. Not all industries were surveyed, and not all agents were observed in all surveyed industries. (2) When using the estimates, standard errors associated with estimates should be considered. (3) Potential exposures to a chemical agent are categorized as actual (i.e., the surveyor observed the use of the specific agent) or tradename (i.e., the surveyor observed the use of a tradename product known to contain the specific agent). The estimates presented in the table combine both categories.