Federal experience is not required. The experience may have been gained in the public sector, private sector or Volunteer Service. One year of experience refers to full-time work; part-timework is considered on a prorated basis. To ensure full credit for your work experience, please indicate dates of employment by month/year, and indicate number of hours worked per week, on your resume. You must meet the following requirements by the closing date of this announcement: SPECIALIZED EXPERIENCE GRADE 14: You must have one year of specialized experience at a level of difficulty and responsibility equivalent to the GS-13 grade level in the Federal service. Specialized experience includes: Experience applying IRS functions, programs, policies, regulations, procedures, and operations to conduct reviews; Experience recognizing significant tax issues and enforcement changes in order to develop new or revised procedures or products for assigned programs; Experience applying a wide range of analytical and evaluative methods in order to develop new approaches to existing programs such as compliance, accounts management and/or taxpayer education and communication functions; Experience using principles of management planning, program and process analysis to develop, design, and implement new or revised policies and procedures; Experience in oral communication to present plans and proposals to individuals and groups, including top-level managers and field employees; Experience in written communication to prepare comprehensive written reports, disseminate policy information, and document findings and conclusions; Experience providing guidance, and serving as a technical program and policy expert to be able to prepare complete decision packages, studies, and major recommendations. AND MEET TIME IN GRADE (TIG) REQUIREMENT: You must meet applicable TIG requirements to be considered eligible. To meet TIG for positions above the GS-05 grade level, you must have served at least one year (52 weeks) at the next lower grade (or equivalent) in the normal line of progression for the position you are applying to. Advancement to positions up to GS-05 is permitted if the position to be filled is no more than two grades above the lowest grade held within the preceding 52 weeks. AND TIME AFTER COMPETITIVE APPOINTMENT: By the closing date (or if this is an open continuous announcement, by the cut-off date) specified in this job announcement, current civilian employees must have completed at least 90 days of federal civilian service since their latest non-temporary appointment from a competitive referral certificate, known as time after competitive appointment. For this requirement, a competitive appointment is one where you applied to and were appointed from an announcement open to "All US Citizens". For more information on qualifications please refer to OPM's Qualifications Standards.