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NEBOSH Level 6 Diploma Assessments

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The NEBOSH Level 6 National/International Diploma for Occupational Health and Safety Professionals has 3 assessments, one for each unit.

Each assessment is completed electronically and submitted through the NEBOSH exam portal. You'll have between 2-4 weeks to complete your assessments, and will have a dedicated start date and submission deadline. 

Please note: For any assessments taken after 1st August 2023, all assessments must be submitted in PDF format only.


Unit DN1/DI1 Assessment

The assessment for Unit DN1/DI1 is split into 2 sections:

  • Scenario based questions (100 marks)
  • Workplace activities, reflective tasks and short research project (200 marks)

You will have 4 weeks to complete your assignment and submit it to the NEBOSH online portal. We recommend you spend at least 40 hours on your assessment, which equates to around 10 hours per week.

The assessment is worth 300 marks and you need to achieve at least 50% to pass.


Unit DN2/DI2 and Unit DN3/DI3 Assessment

Units DN2/DI2 and DN3/DI3 are each assessed with a case-study and scenario based questions. 

You will have 2 weeks to complete each question paper and submit it for marking. We recommend you spend at least 20 hours on each paper (around 10 hours per week).

DN2/DI2 and DN3/DI3 are each worth 175 marks, and you require at least 50% to pass.


NEBOSH Level 6 Diploma Assessment Dates

Please find all upcoming dates below, as well as the registration deadline for each assessment:



Assessment Start DateSubmission DeadlineRegistration Deadline
DN2/DI215 May 202430 May 202409 April 2024
DN3/DI317 July 202431 July 202412 June 2024
DN1/DI111 September 202409 October 202406 August 2024
DN2/DI213 November 202427 November 202409 October 2024



NEBOSH Diploma (2015 syllabus) Exam Dates

If you are still completing your 2015 syllabus NEBOSH Diploma, please see below all upcoming dates for the Unit A/IA, Unit B/IB, Unit C/IC written exams.  Remember, you will need to register for your chosen exam at least 8 weeks in advance

Unit A / IAUnit B/ IBUnit C / IC
16 July 202417 July 202418 July 2024
11 February 202512 February 202513 February 2025
08 July 202509 July 202510 July 2025


DNI Assessment Dates (2015 Syllabus)

See below for all upcoming submission dates for the DNI assignment (2015 syllabus only):

Submission DeadlineRegistration Deadline
22 May 202410 April 2024
28 August 202417 July 2024
27 November 202423 October 2024


Disclaimer: Please select your dates carefully, your exam registration cannot be cancelled or transferred after the registration deadline has passed.

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NEBOSH Level 6 National/International Diploma Assessment Process

NEBOSH will send login details for the NEBOSH assessment portal 2 weeks before your assessment start date. These will arrive by email directly from NEBOSH. From the portal, you can download your assessment paper and any supporting material straight to your computer to complete in your own time.

Please note: For any assessments taken after 1st August 2023, all assessments must be submitted in PDF format only.


Assessment Start Date

On the start date of your assessment window, your assessment paper will be available to download from the NEBOSH portal from 12:00 noon (UK time).

You will have a 4 week deadline for DN1/DI1 assessments, and a 2 week deadline for DN2/DI2 or DN3/DI3.

The closing time for submission is 12:00 noon (UK time) on your deadline date.


Submitting your NEBOSH Level 6 Diploma Assessment

When you’re ready to submit your assessment, save your document with the file name format: [last name, first name, NEBOSH student number, Learning provider name].

You can submit your completed assessment on the NEBOSH portal by heading to the page where you downloaded your question paper and clicking 'add submission'.


Closing Interviews

Learners will be required to attend a virtual closing interview in the form of a professional discussion with a NEBOSH representative. There will be a discussion following each assessment, and you will be given the chance to book a slot for this accordingly.

This will involve discussing your submission with a NEBOSH representative, verifying your identity and confirming the work as your own. The discussions will be approx 45 minutes.


Your NEBOSH Level 6 Diploma Results

You must pass all three assessments to achieve your full NEBOSH Level 6 Diploma qualification. NEBOSH will email you your results within 50 working days after your submission date.

You’ll receive a hard copy certificate for each unit in the post, this can take up to 6-10 weeks after you receive your successful result.

A final overall qualification parchment will be sent from NEBOSH around 6-10 weeks after passing your final unit.

See below links to sample papers for the latest (May 2023) specification of the Level 6 Diploma:




Exam Re-sits

If you have had a referral on a NEBOSH Level 6 Diploma exam, don't worry!

Our exam advisor can provide you all the useful information you need to re-sit your exam and offer useful resources to help you prepare.

A re-sit assessment is £330 GBP (+VAT).


Course Extensions

Online learners have 36-months access to the NEBOSH Level 6 Diploma for Occupational Health and Safety Management Professionals materials via the Astutis LMS.

Learners may purchase a course extension which includes the new NEBOSH exam fee if they are unable to complete their studies in the 36-months.

This extension must be purchased before the elapse date.

Learning Methods

Choose How You Study

Do you prefer interactive online learning using the latest gamification techniques, or do you prefer the social perks of the virtual classroom? Perhaps you prefer chronological learning, using a textbook?

Whatever your choice, we are here to help you make the right decision. Download our 'What's Your Style' guide, and discover your preferred learning style today.

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