GS-4: Employees may be appointed at or advanced to GS-4 if they meet any of the criteria in paragraphs 3b(2)(a) through (c) below: Six months of qualifying experience as an LPN or LVN; OR, Graduation from an approved school (which may be waived as provided in paragraph 4 of Section C) and one year of experience that involved nursing care work in a hospital, outpatient clinic, nursing home, or other supervised medical, nursing, or patient care facility that provided a practical knowledge of human body structure and sterile techniques and procedures; OR, Graduation from an approved school of at least 24 months duration. (2) VHA employees who were converted to appointments under 38 U.S.C. 7401(3) in implementation of Public Law 98-160, enacted November 21, 1983, and for VHA employees converted to appointments under 38 U.S.C. 7405 in implementation of Public Law 99-576, enacted October 28, 1986; and for their future personnel actions under this authority.