This guide describes what to consider in deciding whether and how to reserve procurements for below threshold contracts. Commercial practitioners at all levels within central government departments, executive agencies and non-departmental public bodies (referred to in this document as ‘In-scope Organisations’) should consider this guide when seeking to apply the specified reservations. Other contracting authorities may apply the principles outlined in this PPN. However, application of the PPN should be considered in the light of authorities' relevant legal obligations including but not limited to the restriction applicable to local authorities and certain other authorities under Section 17 of the Local Government Act, 1988.
You can read this free guide on the Guide to Reserving Below Threshold Procurements by the Cabinet Office here.