Section 12-6-2.102.01 - Procurement Regulations(1) Regulations shall be promulgated by the Office of Purchasing, Travel and Fleet Management, with approval of the Public Procurement Review Board (PPRB), in accordance with authority granted under Section 31-7-9, Mississippi Code of 1972, Annotated. (2) Regulations shall not change existing contract rights.12 Miss. Code. R. 6-2.102.01