Applicants will be rated in accordance with the Office of Personnel Management Qualification Standard for Trades and Labor Occupations. Although a specific length of time and experience is not required, you must meet any screen-out element listed, and show through experience and training that you possess the quality level of knowledge and skill necessary to perform the duties at the level for which you are applying. Emphasis is placed on how you gained the quality of experience, not necessarily the length of time, and the required ability or potential to perform the job. Applicants who do not meet the screen-out element (SOE) will be eliminated from further competition. The SOE and minimum qualifications for this position is: Perform the common tasks of the job to be filled but under close supervision, such as receiving general guidance on assignments related to maintenance work on large industrial and commercial air conditioning systems. Selective Placement Factors: Certification: Must possess a EPA Universal Technician certification. License: Must possess valid state and government driver's license. Experience refers to paid and unpaid experience, including volunteer work done through National Service programs (e.g., Peace Corps, AmeriCorps) and other organizations (e.g., professional, philanthropic, religious, spiritual, community, student, social). Volunteer work helps build critical competencies, knowledge, and skills and can provide valuable training and experience that translates directly to paid employment. You will receive credit for all qualifying experience, including volunteer experience. Physical Effort: The employee lifts, carries, and handles equipment up to 40 pounds unassisted and over 40 pounds with assistance. Works from ladders, scaffolding platforms, or cramped areas where equipment, parts, or tools are hard to reach. Work requires frequent stooping, stretching, bending, kneeling, and working in tiring, uncomfortable positions for long periods. In addition, work involves frequent movement and maneuvering of large, heavy equipment using hoists, holders, and pulleys as required. Working Conditions: The employee works indoors and outdoors, on elevated structures, and in cramped areas. Subject to discomfort from face masks or other protective devices when there is a possibility of exposure to toxic refrigerants, noxious gases, fumes, or acids. Subject to possible burns from refrigerants. Works near moving parts of equipment and machinery, energized electrical circuits, sharp metal edges, loud noises, and toxic fumes, which could cause cuts, burns, and respiratory ailments. May be subject to sudden and frequent temperature changes.