NEBOSH National Diploma Units

The NEBOSH National Diploma includes three taught units and one practical, work-based unit, each of which can be purchased and studied individually, allowing students to spread the cost and work at their own pace.

Prices starting from £395 +vat

What is the NEBOSH National Diploma?

The NEBOSH Level 6 National Diploma for Occupational Health and Safety Management Professionals is one of the most highly valued degree-level qualifications for health and safety professionals in the world, considered the gold standard among these qualifications. 

It is the highest-level training NEBOSH offers and as such is a mark of expertise and professionalism for the 18,000 who have earned it since it launched in 1980. The qualification teaches in line with UK HSE (Health and Safety Executive) guidance and legislation.

Throughout the NEBOSH National Diploma candidates will cover the practical skills that are essential to occupational health and safety professionals. We assess candidates’ ability to apply their knowledge in real-world settings and teach them how to deliver positive change in the workplace.  

Book a full Diploma Course at a Discounted Price

Another option for Diploma learners is booking a full course, which contains all three units, plus the exams if you're booking a classroom or virtual classroom course. Full courses are cheaper than purchasing each unit individually, saving you money and letting you get the course teaching finished in just six weeks. You can book your full NEBOSH Diploma here.

Learning options

3 learning types available

Benefits for Learners

  • Completing the NEBOSH International Diploma entitles you to the use of “DipNEBOSH” after your name, evidencing your accredited education and expertise.

  • The course allows full membership of the International Institute of Risk and Safety Management (IIRSM) upon completion, giving you access to the recognition and support this body provides.

  • Through further professional development, the NEBOSH Diploma meets the standards required to achieve Certified Membership status (CertIOSH). This IOSH Membership is further evidence of your position as a health and safety professional.

  • Study the Diploma Units one at a time, allowing for greater flexibility in your studies across a 5-year period. 

Benefits for Employers

  • Develop your workplace’s health and safety culture

  • Have confidence that someone with the appropriate expertise is managing the safety of your employees

  • Raise productivity through reduced time off as a result of workplace accident and injury


We are one of the UK's leading providers of training in health and safety, rated 4.9/5 stars on Trustpilot thanks to our expert tutors and mentors who strive to provide enjoyable learning experiences. 

Student support 

Through our high-quality learning materials, expert tutors on hand via call and email, and student groups, Phoenix is committed to providing learners with the support they need, whenever they need it.  

Many candidates find our Facebook student community particularly helpful while they are studying, as it enables them to compare notes with fellow students and ask questions. 

The Phoenix Pass Pledge 

Every Phoenix NEBOSH course entitles you to continue studying free of charge if you fail to meet the required standard in examinations. However, this is rarely necessary. Our pass rate for NEBOSH courses is above industry average, so this is rarely necessary. 

Accredited Partner 

Phoenix Health and Safety is a NEBOSH Gold Partner. This accreditation means our NEBOSH course materials, tutors, and learning environments are all stamped with excellence. 

The NEBOSH National Diploma course is ideal for health and safety professionals wishing to advance their career, including safety managers, advisors and consultants. 

A degree-level qualification such as the National Diploma can increase promotion prospects and earning potential through proven expertise and education. 

There are no formal entry requirements for the NEBOSH National Diploma; however, we recommend first completing one of the following courses first, as the NEBOSH Diploma syllabus assumes that learners will have this level of prior learning: 

  • NEBOSH National General Certificate 

  • NEBOSH National Certificate in Construction Health and Safety 

The qualification requires a minimum of 191 taught hours, plus 144 recommended self-study hours and 80 assessment hours across the 3 units.

  • When studied through e-Learning, Phoenix recommends spending approximately 330 hours on the course and 80 hours on assessments.

  • When studied through classroom or virtual classroom learning, the course is 27 days, in addition to revision and exam time. This time is split across the three units, with 10 days of taught content for DN1, 9 days of taught DN2, and 8 days of taught content for DN3.

The online exams are run by NEBOSH every two months. Follow this link to book your NEBOSH exam.   

Virtual Classroom Course Dates


Course 1

Week 1 Week 2
DN 1 29 January-2 February 19-23 February
DN 2 8-12 April 22-25 April (4 days)
DN 3 10-14 June 24-26 June (3 days)

Course 2

Week 1 Week 2
DN 1 8-12 July 29 July-2 August
DN 2 16-20 September 30 September-3 October (4 days)
DN 3 4-8 November 18-20 November (3 days)

Classroom Course Dates

Birmingham Courses:


Course 1

Week 1 Week 2
DN 1 22-26 January 12-16 February
DN 2 2-5 April (4 days) 15-19 April
DN 3 3-7 June 17-19 June (3 days)

Course 2

Week 1 Week 2
DN 1 29 July- 2 August 19-23 August
DN 2 7-11 October 21-24 October (4 days)
DN 3 25-29 November 9-11 December (3 days)

London Courses:


Course 1

Week 1 Week 2
DN 1 8-12 January 29 January-2 February
DN 2 18-22 March 2-5 April (4 days)
DN 3 13-17 May 29-31 May (3 days)

Course 2

Week 1 Week 2
DN 1 15-19 July 5-9 August
DN 2 23-27 September 7-10 October (4 days)
DN 3 18-22 November 02-04 December (3 days)

Manchester Courses:


Course 1

Week 1 Week 2
DN 1 15-19 January 5-9 February
DN 2 25-28 March (4 days) 8-12 April
DN 3 20-24 May 3-5 June (3 days)

Course 2

Week 1 Week 2
DN 1 22-26 July 12-15 August
DN 2 30 September-4 October 14-17 October
DN 3 18-22 November 2-4 December (3 days)

Our classroom course timings are 09:00-18:00 Monday - Friday.

The NEBOSH National Diploma course consists of three units. Each one can be completed separately and is assessed independently, with a certificate provided upon passing the exam for each unit. They are broken into 'Know' and 'Do', covering what a health and safety professional must know and do in the workplace respectively.

  • DN1 – Know – workplace health and safety principles 

  • DN2 – Do – controlling workplace health issues 

  • DN3 – Do – controlling workplace safety issues 

Upon completion of the NEBOSH National Diploma, candidates will be able to:

  • You will be able to source, develop, evaluate and interpret relevant health and safety information (such as legislation, guidance, best practice, procedures) and communicate it effectively to those who need it (both within your organisation and those affected by your organisation’s activities such as contractors and insurers).

  • You will be able to promote a positive health and safety culture by: gaining commitment and participation; and engaging, supporting and influencing leaders (and others) to change attitudes and behaviour and make health and safety a priority.

  • You will be able to assess, develop and maintain individual and organisational health and safety competence.

  • You will be able to understand risk management including the techniques for identifying hazards, the different types of risk assessment, considerations when implementing sensible and proportionate additional control measures and developing a risk management strategy

  • You will be able to develop and implement proactive and reactive health and safety monitoring systems and carry out reviews and auditing of such systems.

  • You will be able to continually develop your own professional skills and ethics to actively influence improvements in health and safety by providing persuasive arguments to workers at all levels.

  • You will be able to develop a health and safety policy strategy within your organisation (including proactive safety, Corporate Social Responsibility and the change management process)

  • You will be able to contribute to health and safety legal actions.

  • You will be able to manage contractors and supply chains to ensure compliance with health and safety standards.

  • You will be able to advise the organisation on a range of common workplace health issues/ hazards including how these can be assessed and controlled and the legal duties associated with these issues/hazards.

  • You will be able to advise the organisation on a range of common workplace safety issues/ hazards including how these can be assessed and controlled and the legal duties associated with these issues/hazards.

The assessments focus on the application of knowledge to help you prepare for the health and safety tasks faced in the workplace.  

Each assessment is a substantial undertaking. We anticipate that it will take you around 40 hours to complete the DN1 assignment and 20 hours each for the DN2 and DN3 case studies. The time-period given for you to complete each assessment reflects this:  

  • Unit DN1: 4 weeks (20 working days)  

  • Unit DN2: 2 weeks (10 working days)  

  • Unit DN3: 2 weeks (10 working days) 

You can view the NEBOSH National Diploma Exam Dates and book your exam here.

The NEBOSH Diploma acts as a stepping-stone to postgraduate study. Many UK universities accept the NEBOSH Diploma as entry criteria for MSc-level courses, so it provides a clear route to masters-level postgraduate study. 

  • When and how will I receive my NEBOSH results?

Results are provided by NEBOSH after completing the course. NEBOSH send out the results 50 working days after the exam.

  • What happens if I fail the NEBOSH assessment?

The Phoenix Pass Pledge will cover your additional studies, but you retake the exams at your own cost. 

  • What level are NEBOSH qualifications?

NEBOSH Certificates are level 3, which is equivalent to an A level qualification. NEBOSH Diplomas are level 6, which is equivalent to an Honours Degree.

  • Are there any entry requirements for NEBOSH Certificates?

There are no entry requirements, which makes a NEBOSH Certificate an ideal starting point for your health and safety training. Learners must have a suitable standard of English language to understand and articulate the concepts contained in the syllabus.  

  • When and how will I receive my results and NEBOSH certificate?

NEBOSH send out the results 50 working days after the exam.

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