Psychological evaluations are relied on by employers, professional licensing boards, and civil service commissions to make hiring and employment decisions affecting individuals, organizations, and the public. To promote best practices, these professional practice guidelines were developed for use by psychologists who perform clinical evaluations of individuals for occupational purposes, regardless of whether the evaluation is intended to obtain employment, to achieve licensure/certification, or to maintain either. These guidelines were created by the Committee on Professional Practice and Standards (COPPS) to educate and inform the practice of psychologists who conduct occupationally mandated psychological evaluations (OMPEs), as well as to stimulate debate and research in this important area.