Qualification requirements in the vacancy announcements are based on the U.S. Office of Personnel Management (OPM) Qualification Standards Handbook, which contains federal qualification standards. This handbook is available on the Office of Personnel Management's website located at: https://www.opm.gov/policy-data-oversight/classification-qualifications/general-schedule-qualification-standards/ To qualify for the 1301 series: BASIC REQUIREMENTS: This position requires applicants to meet a Basic Education Requirement in addition to at least one full year (52 weeks) of specialized experience OR substitution of education for experience OR combination (if applicable) in order to be found minimally qualified. Transcripts must be submitted with your application package. You MUST meet one of the following basic education requirements: A. Degree: physical science, engineering, or mathematics that included 24 semester hours in physical science and/or related engineering science such as mechanics, dynamics, properties of materials, and electronics. OR B. Combination of education and experience: education equivalent to one of the majors shown in A above that included at least 24 semester hours in physical science and/or related engineering science, plus appropriate experience or additional education. SPECIALIZED EXPERIENCE: Applicants must possess one year of specialized experience equivalent in difficulty and responsibility to the next lower grade level in the Federal Service. Specialized experience is experience that has equipped the applicant with the particular competencies/knowledge, skills and abilities to successfully perform the duties of the position. This experience need not have been in the federal government. 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. To qualify at the ZP-3 or GS-11 level: SPECIALIZED EXPERIENCE: In addition to meeting the Basic Requirements above, applicants must also possess one full year (52 weeks) of specialized experience equivalent to the ZP-2 or GS-09 in the Federal service. Specialized experience MUST include all of the following: Assisting in research to support forecasting or numerical modeling or observations; and Assisting in developing or testing computer coding or software or instrumentation. OR SUBSTITUTION OF EDUCATION: Master's or equivalent graduate degree. OR COMBINATION OF EDUCATION AND EXPERIENCE: A combination of education and professional experience. Combinations of successfully completed graduate level education and specialized experience may be used to meet total experience requirements. (Note: Only graduate level education in excess of the amount required for the next lower grade level may be combined with experience.)