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NEBOSH Diploma in Occupational Health and Safety Exams

The NEBOSH National/International Diploma in Occupational Health and Safety (2014 Syllabus) has 4 exams, one for each unit.

  • Unit A/IA: 3-hour written exam
  • Unit B/IB: 3-hour written exam
  • Unit C/IC: 3-hour written exam
  • Unit DNI: 8000 word practical assignment

Written exams take place twice a year, in January and July, while your Unit DNI practical assignment can be submitted at four different points throughout the year. 

Upcoming NEBOSH Diploma Exam Dates

You need to register for your NEBOSH Diploma exam at least 8 weeks before your chosen exam date. 

NEBOSH Diploma Written Exam Dates

Unit A/IA

Unit B/IB

Unit C/IC

Registration Deadline

12 October 2021

13 October 2021

14 October 2021

17 August 2021

11 January 202212 January 202213 January 202216 November 2021


NEBOSH Diploma Unit DNI Submission Dates

Submission date

Registration deadline

25 August 2021

14 July 2021

24 November 2021

13 October 2021


Please note, you must have completed your Unit A, B and C exam before you can submit your Unit DNI assessment.

How to book your NEBOSH Diploma Exam

To book your NEBOSH Diploma written exam or practical assignment, simply fill in the orange form with the required information. Our exam coordinator will be in touch within 24 hours to confirm your booking and explain the next steps. 

If you have any questions, please get in touch with us at

Where can I sit my NEBOSH Diploma Exams?

You can sit your NEBOSH Diploma exams with us at the following venues:

  • Birmingham
  • Bristol
  • Cardiff
  • Central London
  • Edinburgh 
  • Glasgow 
  • Heathrow
  • Wakefield
  • Warrington

Exam Booking Form

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