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. 


DPSI Law is fully accepted by the UK Police for the PAIT Police Approved Interpreter and Translator Scheme and by the UK Ministry of Justice for work in the courts and wider criminal justice system.

It is also recognised and accepted by the UK's National Register of Public Service Interpreters, NRPSI and strongly recommended for work in Health and all public service contexts. 

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 their services that interpreting provided by qualified holders of the CIOLQ DPSI are 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 and rewarding public service interpreting 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 other interpreters, 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.


Registration for November 2024

Registration for the DPSI in November 2024 will open soon. You can also tell us your preferred pathway and language for November 2024 or for 2025 by expressing an interest here.



For the June 2024 DPSI session the following languages (paired with English) are being offered for the DPSI Law and Health pathways:

Arabic (MSA), Cantonese (Traditional), Cantonese (Simplified), Farsi, French, Italian, Kurdish (Sorani), Mandarin (Simplified), Mandarin (Traditional), Polish, Portuguese (Brazilian), Romanian, Russian, Spanish, Turkish, Ukrainian, Urdu.

You can express an interest for other languages and future sessions here.

If you have any other questions about languages, pathways or future sessions please contact our Client Services Team (CST) at