Participation of women is increasing in the industrial workforce and in the traditional male occupational groups. The differences between women and men in physical performances such as strength, stamina, and skill, make mandatory the assessment of work requirements in the occupational environment, especially in view of the workforce trends and legal requirements for equal employment opportunity. Use of a taxonomic system based on fundamental human abilities or capacities provides a basis for such assessments. One such system of nine factor analytically identified physical ability factors (cf. Fleishman, 1964) is proposed wlth an example of the physical-work requirements. Data are presented from an investigation of the physical-performance requirements of 15 benchmark jobs in a county-level governmental personnel classification system. (Author/CC)