Dynamic Purchasing Systems A Dynamic Purchasing System (DPS) allows a contracting authority to purchase goods, services and works for which they have a regular need, without having to carry out a full public procurement process for each individual purchase. A DPS is intended for procurement of common use items that are generally available on the market and meet the contracting authority’s requirements. For background reading, see: • Practice Notes: Introduction to public contracts procurement—pre PA 2023 [Archived] and Introduction to framework agreements and dynamic purchasing systems—pre-PA 2023 • Crown Commercial Service (CCS): Dynamic purchasing system guidance Under the Public Contracts Regulations 2015 (PCR 2015), SI 2015/102, a contracting authority establishing a DPS must comply with the rules specified and cross-referred under PCR 2015, SI 2015/102, reg 34. In