Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
019	MANAGERS AND ADMINISTRATORS, N.E.C.	280
224	CHEMICAL TECHNICIANS	88
453	JANITORS AND CLEANERS	3,770
505	AUTOMOBILE MECHANICS	10,603
507	BUS, TRUCK, AND STATIONARY ENGINE MECHANICS	17
516	HEAVY EQUIPMENT MECHANICS	468
544	MILLWRIGHTS	147
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	2,386
549	NOT SPECIFIED MECHANICS AND REPAIRERS	887
563	BRICKMASONS AND STONEMASONS	1,175
567	CARPENTERS	2,841
633	SUPERVISORS, PRODUCTION OCCUPATIONS	321
634	TOOL AND DIE MAKERS	614
637	MACHINISTS	7,382
689	INSPECTORS, TESTERS, AND GRADERS	6	6
705	MILLING AND PLANING MACHINE OPERATORS	1,923
715	MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS	213
726	WOOD LATHE, ROUTING, AND PLANING MACHINE OPERATORS	353
754	PACKAGING AND FILLING MACHINE OPERATORS	462	55
756	MIXING AND BLENDING MACHINE OPERATORS	176
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	1,270
779	MACHINE OPERATORS, NOT SPECIFIED	554	47
785	ASSEMBLERS	1,800	88
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	1,597	1,369
804	TRUCK DRIVERS, HEAVY	1,813
825	RAILROAD BRAKE, SIGNAL, AND SWITCH OPERATORS	16
844	OPERATING ENGINEERS	129	129
853	EXCAVATING AND LOADING MACHINE OPERATORS	762
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	2,319
869	CONSTRUCTION LABORERS	409
873	PRODUCTION HELPERS	204
883	FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C.	691
885	GARAGE AND SERVICE STATION RELATED OCCUPATIONS	2,944
887	VEHICLE WASHERS AND EQUIPMENT CLEANERS	398	110
888	HAND PACKERS AND PACKAGERS	18	18
889	LABORERS, EXCEPT CONSTRUCTION	248	18
TOTAL		49,282	1,839

*(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.