Arduous of Hazardous Positions [Civil Service Regulations] Law and Legal Definition

According to 5 CFR 339.104 [Title 5 -- Administrative Personnel; Chapter I -- Office of Personnel Management; Subchapter B -- Civil Service Regulations; Part 339 -- Medical Qualification Determinations; Subpart A – General], arduous of hazardous positions means “positions that are dangerous or physically demanding to such a degree that an incumbent's medical condition is necessarily an important consideration in determining ability to perform safely and efficiently.”