There are a number of rules, regulations and guidelines by which prisons are run. These are outlined in Prison Service Instructions (PSIs) and Prison Service Orders (PSOs).

From 1 August 2009, all Prison Service operating instructions are published as PSIs. They have a fixed expiry date. Prior to 1 August 2009, PSIs were issued to convey short term instructions or amendments to PSOs and had a maximum validity of 12 months.

PSI Numerical Index 1997 - 2009 (PDF 0.55mb)

PSI and AI Numerical List 2009 onwards (PDF 0.23mb)

Subject Index (PDF 0.13mb)

Download related forms

13/2013 - Sentence Calculation - Determinate Sentence Prisoners (DOC 3mb)

12/2013 - NOMS Policy On Managing Poor Performance (DOC 0.35mb)

11/2013 - NOMS Performance Management Policy (DOC 0.23mb)

08/2013 - The Review of Security Category – Category A / Restricted Status Prisoners (DOC 0.50mb) 

07/2013 - Occupational health (DOC 0.23mb)

06/2013 - Mandatory use of ViSOR (DOC 0.37mb)

05/2013 - The Identification, Initial Categorisation and Management of Potential and Provisional Category A / Restricted Status Prisoners (DOC 0.38mb) 

04/2013 - The early removal scheme and release of foreign national prisoners (DOC 0.62mb)

03/2013 - Medical emergency response codes (DOC 0.14mb)

02/2013 - Managing private law claims (DOC 0.50mb)

01/2013 - Resettlement outside England and Wales on licence (DOC 0.41mb)