Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
019	MANAGERS AND ADMINISTRATORS, N.E.C.	368
453	JANITORS AND CLEANERS	4,308	45
496	TIMBER CUTTING AND LOGGING OCCUPATIONS	5,874
505	AUTOMOBILE MECHANICS	5,042
507	BUS, TRUCK, AND STATIONARY ENGINE MECHANICS	496
516	HEAVY EQUIPMENT MECHANICS	7,348	75
518	INDUSTRIAL MACHINERY REPAIRERS	752
519	MACHINERY MAINTENANCE OCCUPATIONS	107
544	MILLWRIGHTS	27
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	252
549	NOT SPECIFIED MECHANICS AND REPAIRERS	7,134	305
558	SUPERVISORS, N.E.C.	112
567	CARPENTERS	3,773
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	3,618
637	MACHINISTS	2,363
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	256
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	990	985
708	DRILLING AND BORING MACHINE OPERATORS	2
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	120
717	FABRICATING MACHINE OPERATORS, N.E.C.	1,351
727	SAWING MACHINE OPERATORS	134
734	PRINTING MACHINE OPERATORS	456	40
779	MACHINE OPERATORS, NOT SPECIFIED	134
783	WELDERS AND CUTTERS	357
785	ASSEMBLERS	287
787	HAND MOLDING, CASTING, AND FORMING OCCUPATIONS	293
804	TRUCK DRIVERS, HEAVY	7,255	56
825	RAILROAD BRAKE, SIGNAL, AND SWITCH OPERATORS	16
844	OPERATING ENGINEERS	7,583	94
848	HOIST AND WINCH OPERATORS	8,072
853	EXCAVATING AND LOADING MACHINE OPERATORS	762
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	1,203	134
873	PRODUCTION HELPERS	204
878	MACHINE FEEDERS AND OFFBEARERS	367	245
883	FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C.	45
885	GARAGE AND SERVICE STATION RELATED OCCUPATIONS	2,324
888	HAND PACKERS AND PACKAGERS	90
TOTAL		73,876	1,980

*(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.