Experience may be obtained in the federal government, a state or local government, or private sector, and must demonstrate the following: Advising management, customers, or contractors on federal acquisition regulations; AND, Preparing contracting pre-award functions (i.e., preparing solicitation documents, analyzing proposals, negotiating with potential contractors, etc.); AND, Administering/closing contracts such as monitoring progress, negotiating modifications or closeout. Waiver: When filling a specific vacant position, the senior procurement executive of the selecting agency, at his or her discretion, may waive any or all of the requirements of Paragraphs A and B above if the senior procurement executive certifies that the applicant possesses significant potential for advancement to levels of greater responsibility and authority, based on demonstrated analytical and decision making capabilities, job performance, and qualifying experience.