Work exposes employee to fumes, odors, smoke, gases, chemicals, mechanical mechanisms, toxic substances, radiation, communicable diseases, blood borne pathogens, moving traffic, electrical hazards, explosions, dangerous animals, extreme heights, unknown elements, life threatening conditions, atmospheres of up to 1000 degrees, irregular/protracted work hours, regular sleep disruption, and extreme heat or weather conditions. High school diploma from a school accredited by a regional accrediting agency recognized by the U.S. Department of Education or official high school transcript with posted graduation date from a public, private, church, or religious school or a home school program equivalent to the Alabama High School Diploma, as defined by the Alabama State Board of Education or GED certificate issued by the appropriate state agency; 18 years of age, and must possess and maintain a valid U.S. drivers license.