or J.D., in one or more of the following disciplines: safety, occupational health, industrial hygiene, occupational medicine, toxicology, public health, mathematics, physics, chemistry, biological sciences, engineering, and industrial psychology; OR an appropriate combination of specialized experience and education (only graduate education in excess of 18 semester hours may be used to qualify applicants for this grade level in one or more of the following disciplines: safety, occupational health, industrial hygiene, occupational medicine, toxicology, public health, mathematics, physics, chemistry, biological sciences, engineering, and industrial psychology). Specialized experience is defined as one or more of the following: Conducting or organizing safety training in the field or classroom; and/or leading or participating in after action incident reviews or facilitated learning analyses; and/or experiencing, certifying, and training in using mechanized equipment such as chainsaws, ATVs, snow machines, radios, and other equipment and resources used in natural resource management; and/or preparing and implementing project job hazard analyses; and/or participating in the applications of risk management principles in the development or implementation of projects or field operation.