Although a specific length of time and experience is not required for most trade and labor occupations, you must show through experience and training that you possess the quality level of knowledge and skill necessary to perform the duties of the position at the level for which you are applying. Qualification requirements emphasis is on quality of experience, not necessarily the length of time. Your qualifications will be evaluated on the basis of your level of knowledge, skills, abilities and/or competencies in the job elements and screen out listed below. This job has a screen-out element which will be used to determine minimum eligibility for this job. Applicants who do not receive a minimum of two points on the screen-out element(s) will be found ineligible. The Screen-out Element for this position is: Interpreting specific servicing requirements for each component and/or type of system according to the aircraft to be serviced (e.g., specialized hose adapters for pneumatic systems, oxygen systems, and critical pressures); Interpreting pre-servicing procedures on oxygen and pneumatic servicing carts (e.g., building up transfer pressure in liquid oxygen trailers and setting manifold control and regulator valves); and the effect of ambient temperatures on oxygen and pneumatic servicing procedures; Prepares or annotates on aircraft forms to record servicing and/or other actions either manually or through input into automated equipment. Applicants must meet the requirements of the Office of Personnel Management (OPM) Job Qualification Handbook for Trades and Labor Occupations. Additional qualification information can be found at: https://www.opm.gov/policy-data-oversight/classification-qualifications/federal-wage-system-qualifications/#url=List-of-Approved-Job-Elements Experience refers to paid and unpaid experience, including volunteer work done through National Service programs (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.