Chartered Institute
of Linguists

CIOL Qualifications Level 6 Diploma in Public Service Interpreting (DPSI)

What is the DPSI?

The CIOL Qualifications Level 6 Diploma in Public Service Interpreting (DPSI) has been the benchmark qualification for public service interpreting for over 30 years, and is now available fully online. Linguists seeking recognition as an interpreter can take the CIOLQ DPSI with pathways in Law (English, Scottish and Northern Irish) Health and Local Government.

The DPSI Law is fully accepted by the UK Police for the PAIT Police Approved Interpreter and Translator Scheme. For more see the resources here.

The CIOLQ DPSI provides candidates with recognition and validation of their skills in specialist areas of public service and provides reassurance to employers, public bodies and those benefiting from the services of freelancers that the interpretation provided by qualified holders of the CIOLQ DPSI is of the highest professional standard.

Is the CIOLQ DPSI right for me?

CIOL Qualifications (CIOLQ) supports professional linguists by providing the benchmark qualifications for interpreters and translators which are recognised widely in the UK and around the world. 

Holders of the CIOLQ DPSI have been tested rigorously and in depth to prove they have the language skills, interpreting techniques and the right approach to take on the most demanding assignments. Add CIOL Study Affiliate Membership to that and you have:

  • Membership of the UK's Royal Charter professional body for language practitioners
  • A mentoring programme
  • Access to online CPD and a community of language professionals and linguists

The CIOLQ DPSI qualifies you not just for vitally important work but also to become a valued participant in a community of like-minded professionals widely respected for their skill, expertise and experience. In addition, once you have the CIOLQ DPSI, applying for full CIOL membership and Chartered Linguist status can set you apart to ensure you get the recognition and reward you deserve.

New for November 2022

We are now open for registations for November 2022. We anticipate that the full DPSI (all pathways: Units 01-05) will be available in November 2022.


We always look to offer the broadest possible range of DPSI languages subject to candidate demand. The following DPSI languages are under consideration for November 2022, paired with English:

Albanian, Arabic (MSA), Bulgarian, Cantonese (Traditional or Simplified Script), Dari, Farsi, French, German, Hungarian, Italian, Mandarin (Traditional or Simplified Script), Polish, Portuguese (Brazilian and European), Romanian, Russian, Spanish Turkish, Urdu and Ukrainian.

Please note we cannot guarantee that a particular pathway and language combination will be set for future exam sessions. Availability is dependent on candidate demand and the number of candidates registering for a specific pathway and language combination in any given session. If you have any questions about registrations for November 2022, please contact our Client Services Team (CST) at