To qualify for this position, applicants must meet all requirements by the closing date of this announcement. EXPERIENCE: A specific length of training and experience is not required, but you must show evidence of training or experience of sufficient scope and quality of your ability to do the work of this position. Evidence which demonstrates you possess the knowledge, skills, and ability to perform the duties of this position must be supported by detailed descriptions of such on your resume. Applicants will be rated in accordance with the OPM Federal Wage System Qualification Standards. SCREEN-OUT ELEMENT: Your qualifications will first be evaluated against the prescribed screen out element, which usually appears as question 1 in the on-line questionnaire. Those applicants who appear to possess at least the minimal acceptable qualification requirement are considered for further rating; those who do not are rated ineligible and are eliminated. The potential eligibles are then rated against the remainder of the Job Elements: Interpret Instructions, Specifications (includes blueprint reading) Measuring Instruments Shop Practices Use Hand Tools - Machine Shop Without more than normal supervision Work Practices Preferred Experience: Knowledge of materials, methods, and the appropriate tools to install, maintain, or repair pipelines, pipe systems, and fixtures, including water, air, steam, gas, chemicals, or sewage. Measurement and Layout. Exerts maximum muscle force to lift, push, pull, or carry objects; performs moderately laboring work. Interpret Instructions, Specifications (including blueprint reading): Ability to interpret instructions, Specification, etc. (includes blueprinting reading). Often the employee is required to layout and install, modify and repair new and existing utility, supply and disposal systems and equipment. This includes water supply, gas, oxygen, air, vacuum, fire sprinkler systems, all types of plumbing fixtures, hot water generators and sewer systems. The employee must have the ability to use shop mathematics. 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; religions; 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. Note: A full year of work is considered to be 35-40 hours of work per week. Part-time experience will be credited on the basis of time actually spent in appropriate activities. Applicants wishing to receive credit for such experience must indicate clearly the nature of their duties and responsibilities in each position and the number of hours a week spent in such employment.