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: Ability to do the work of a WELDER WORKER without more than normal supervision performing the following: 1. Reading blue prints and sketches to prepare and set up parts and/or surfaces to be welded. 2. Operating various electric resistance welding machines or use one or more manual welding processes (e.g., oxyacetylene or oxyhydrogen gas or gas carbon-arc or gas metal arc) to fabricate or repair common metal parts assemblies or components of equipment, containers, structures or facilities. 3. Performing all types of basic welding and brazing, soldering and cutting. 4. Positioning and control the torch or arc and feed welding rod or electrode to obtain weld bead size required, penetration desired and prevent burning base metal while welding common, similar metals of varying size, shape and thickness to loose tolerances. 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=Overview 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.