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NEBOSH National Diploma for Occupational Health and Safety Management Professionals

There's never been a better time to accelerate your career. To develop your leadership skills. To drive innovation in health and safety and take a senior position in your company.

Whatever your career goal, the National Diploma for Occupational Health and Safety Management Professionals qualification will help you get there.

Astutis have a 82% NEBOSH Diploma pass rate – that’s far higher than the national average and the reason why 1 in 5 UK learners choose Astutis.

Learning Methods



475 hours

Entry Requirements

NEBOSH General Certificate
5+ Years Health & Safety Role

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NEBOSH National Diploma Explained

The NEBOSH Diploma for Occupational Health and Safety Professionals is an advanced health and safety qualification.

It replaced the NEBOSH Diploma in Occupational Health and Safety in April 2021. All Astutis Diploma courses are delivered to the new syllabus specification.

The course is made up of three units and covers legislation, hazardous agents, equipment, and workplace safety. It's assessed with one workplace assignment and two case studies.

The NEBOSH Diploma is recognised by employers and professional memberships in over 180 countries around the world! It's the ideal course if you want a successful, long-term career in health and safety.


Designed by Experts for Experts.
Take a look at our latest video to discover our market leading interactive features of our online Diploma course.

Hosted on the Astutis Learning Campus, featuring StudySmartTM and ExamSmartTM preparation tools to help you pace your learning.

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  • ND1

    Workplace health and safety principles

  • ND2

    Controlling workplace health issues

  • ND3

    Controlling workplace safety issues


  • ND1 Assignment. Approx. 60-hours to complete

    ND2 Case study: Approx. 40-hours to complete

    ND3 Case-study. Approx 40-hours to complete

Course Length

  • Online/Distance: approx 475 hours (3 years access provided)

    Virtual/Classroom: 6 split weeks (30 working days)

    Evening Virtual: 3 hours per week evening release (spread over approx 20 months)


Learning Methods

  • Virtual


  • Online

    Instant access

  • Classroom

    Structured learning

  • On-Site

    Delivered on-site

  • Distance

    Digital course notes

Birmingham - RoSPA
Manchester - RoSPA
Glasgow - RoSPA

The NEBOSH Diploma is an advanced qualification. You should already understand fundamental health and safety principles such as risk assessment, hazard control, accident investigation, and key regulations.

It is very strongly recommended to have either completed the NEBOSH General Certificate, or have at least 5 years experience working in a health and safety role.

You’ll also need to have a good level of communication to critically analyse information and apply it to any given scenario.


Interested in the NEBOSH General Certificate?

Find out more

Workplace health and safety principles This unit provides an in-depth understanding of the key areas for managing health and safety. It covers moral, economic and societal drivers, health and safety law and management systems.
Controlling workplace health issues This unit gives an in-depth understanding of all major aspects of managing chemical, biological, physical and physiological hazards in the workplace.
Controlling workplace safety issues This unit provides a thorough understanding of how to create a safe working environment. It covers welfare, fire, dangerous substances, work equipment, electricity, construction and transport.

Interested in the full NEBOSH Diploma for Occupational Health and Safety Management Professionals syllabus?

Find out more

NEBOSH National Diploma full Course Guide

NEBOSH National Diploma Factsheet

NEBOSH Diploma Course Guide

NEBOSH National Diploma Syllabus Guide

NEBOSH Qualification Progression


Each assessment is completed electronically and submitted through the NEBOSH exam portal. You'll have between 4-6 weeks to complete your assessments, and will have a dedicated start date and submission deadline.


You must pass all three units to achieve your full NEBOSH Diploma. Your total number of marks will determine your final qualification grade:

Pass: 150-195 marks

Credit: 196-255 marks

Distinction: 226+ marks

Need more information? Visit our Exam Hub:

Read more


Have you completed the NEBOSH General Certificate?
The Diploma builds upon the foundation of the General Certificate, and it is strongly recommended that you undertake this qualification first
Do you have a suitable standard of English?

It is important that learners have a suitable standard of English language in order to understand and articulate the concepts contained in the syllabus. NEBOSH recommends that learners undertaking this qualification should reach a minimum standard of English equivalent to an International English Language Testing System (IELTS) score of 7.0 or higher in IELTS test.
You need to have a foundation understanding of health and safety principals before taking the NEBOSH Diploma. It is strongly recommended that you take the NEBOSH General Certificate or have at least 5 years experience working in a health and safety role to increase your chance of passing.
As a NEBOSH learner you have your own login to a portal containing unique health & safety information, events for tailored Continuing Professional Development, networking opportunities a biannual journal exploring recent health and safety research. The NEBOSH National Diploma qualification meets the academic requirements to apply for Graduate Membership (Grad IOSH) of Institution of Occupational Safety and Health (IOSH). It is the first step to becoming a Chartered Health and Safety Practitioner as a chartered Member of IOSH (CMIOSH). The next step is completing a Skills Development Portfolio. Once you have passed all of the units you will also need to maintain your continuing professional development (CPD). You will be asked to attend a peer review interview.
The length of time taken to complete the NEBOSH National Diploma course varies according to mode of study. Candidates have a period of 5 years from enrolment to completing their NEBOSH National Diploma exams. 
Choosing a provider for the NEBOSH Diploma can be tough. There are a lot of providers to choose from and you want to ensure you get the most from your money. Astutis' advice is to look at online reviews and testimonials to see what past learners think. You could also try to understand what their average pass rates are - this reflects on the quality of training and learning support. Reviewing what learning material you will have access to and whether or not the provider offers a learning method that's right for you is also really important.
The NEBOSH Diploma course is available in two versions. National for UK based learners and International for learners outside the UK. Both courses are equal to one another however the syllabus is slightly different and is tailored to legislation in different parts of the world.
The NEBOSH Diploma is a level 6 qualification which is equivalent to a foundation level degree. According to the National Qualifications Framework, this equates to around 2/3 of a full bachelor's degree.
All Astutis tutors are experienced health and safety professionals and leaders within their field. With vast industry knowledge gained from experience, our tutors are also educationalists who hold teaching qualifications, masters degrees or doctorates. Additionally, as NEBOSH examiners they are ideally placed to guide and coach delegates to ensure success. For those studying online, with our award-winning LMS, delegates are able to further interact outside of the classroom by way of our tutor-led discussion forum and notice boards. Tutors are able to pose questions and guide conversation to further develop thinking around particular topics. Online learners will gain free access to revision webinars as part of their course and all Astutis delegates will be assigned a tutor on enrolment who will be on hand to answer questions on a one-to-one basis via telephone or email.
Like other NEBOSH courses, the NEBOSH Diploma does not expire. However, it is best to keep up to date with the latest legislation and health and safety news. You can do this by reviewing the latest syllabus, subscribing to health and safety blogs and by attending health and safety events.
Workplace Training

NEBOSH National Diploma for Your Workforce

Develop your people for a better organisation

By applying the knowledge and skills gained from the NEBOSH National Diploma qualification you will be able to contribute to maintaining a safe and healthy workplace.

Our training has been tried and tested by 100,000 health and safety professionals. We offer a range of learning options including virtual classroom, online and on-site classroom courses delivered at a premises and on a day of your choice.

Benefits Of Staff Training At Your Organisation

Cost and time saving benefits for larger number of staff
Your own dedicated account manager to organise all aspects of your training
Relevant training for your staff can be tailored to company requests
Choice and convenience of training delivery options to suit your staff

Whats The Best Way For My Staff To Learn?

Dependent on staff availability, location, budget and your company needs, choose from the options:

Online - Our interactive and multimedia rich courses for staff to fit in around their commitments

Virtual - The Virtual Learning Academy is the most modern approach to delivering live-online training without the need to travel

Classroom - Expert tutor-led delivery that is hosted in a professional training environment across 6-sites within the UK.

Workplace Training

Helping You To Train Your Staff

Independent and practical consultancy support provided by our Chartered Health and Safety, and Environmental practitioners.

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