NEBOSH National Diploma in Health and Safety


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The NEBOSH National Diploma in Occupational Health and Safety is the “Gold Standard” in Safety & Health qualifications. Respected internationally by employers, this is the must have qualification for those who's ambition is to be a "Safety Professional" and a high level career in HSE management.

New Syllabus Courses NOW Available
Save 20% until the end of August
Click here to find out how the changes to the NEBOSH Diploma Specification affect you.

Studying Your NEBOSH Diploma with RRC

RRC offer you more than any other NEBOSH provider:

  • 85 Years experience in delivering training, 35 Years for NEBOSH courses
  • Choice of learning methods, so you can choose the method that best suits your individual learning style, work commitments, lifestyle and budget
  • Above average exam pass rates
  • Teaching and Support from a team of 40 expert tutors

Benefits of Achieving the NEBOSH Diploma

  • Valued by employers – NEBOSH Diploma holders get higher salaries (NEBOSH research)
  • Boost your career prospects – NEBOSH Diploma holders in demand throughout the world
  • Use the letters 'DipNEBOSH' after your name
  • Entitled to graduate membership of IOSH (GradIOSH)
  • Entitled to full membership of the IIRSM (MIIRSM)
  • Entry requirement for many safety related UK Masters programmes

NEBOSH National Diploma in Occupational Health and Safety

builds on the knowledge gained at NEBOSH Certificate level. It is based on UK law and is made up of four units which must be completed within five years:

NEW 2015 Specification Syllabus

  • Unit A: Managing Health and Safety - 188 Hours

    • A1 - Principles of Health and Safety Management
    • A2 - Principles of Health and Safety Law
    • A3 - Criminal Law
    • A4 - Civil Law
    • A5 - Loss Causation and Incident Investigation
    • A6 - Measuring and Reviewing Health and Safety Performance
    • A7 - The Assessment and Evaluation of Risk
    • A8 - Risk Control
    • A9 - Organisational Factors
    • A10 - Human Factors
    • A11 - The Role of the Health and Safety Practitioner

Assessed by a three hour written exam

  • Unit B: Hazardous Substances/Agents - 115 Hours

    • B1 - Managing Occupational Health
    • B2 - Identification, Assessment and Evaluation of Hazardous Substances
    • B3 - The Control of Hazardous Substances
    • B4 - The Monitoring and Measuring of Hazardous Substances
    • B5 - Biological Agents
    • B6 - Noise and Vibration
    • B7 - Radiation
    • B8 - Mental Ill-Health and Dealing with Violence and Aggression at Work
    • B9 - Musculoskeletal Risks and Controls
    • B10 - Work Environment Risks and Controls

Assessed by a three hour written exam

  • Unit C: Workplace and Work Equipment Safety - 120 Hours

    • C1 - Workplace Welfare Requirements and Specific Workplace Issues
    • C2 - Fire and Explosion
    • C3 - Workplace Fire Risk Assessment
    • C4 - The Storage, Handling and Processing of Dangerous Substances
    • C5 - Work Equipment
    • C6 - Workplace Machinery
    • C7 - Mobile, Lifting, Access and Work at Height Equipment
    • C8 - Electrical Safety
    • C9 - Construction and Works of a Temporary Nature - Hazards and Controls
    • C10 - Workplace Transport and Managing Work-Related Road Risk

Assessed by a three hour written exam

  • Unit DNI: Application of Health and Safety Theory and Practice

Pending information from NEBOSH

Previous Syllabus

  • Unit A: Managing Health and Safety - 166 Hours

    • Principles of Health and Safety Management
    • Loss Causation and Incident Investigation
    • Measuring and Reviewing Health and Safety Performance
    • Identifying Hazards, Assessing and Evaluating Risks
    • Risk Control
    • Organisational Factors
    • Human Factors
    • Principles of Health and Safety Law
    • Criminal Law
    • Civil Law

Assessed by a three hour written exam

  • Unit B: Hazardous Agents in the Workplace - 121 Hours

    • Principles of Toxicology and Epidemiology
    • Hazardous Substances and Other Chemicals - Assessment of Risk; Engineering Controls and Personal Protective Equipment
    • Monitoring and Measuring
    • Biological Agents
    • Physical Agents - Noise and Vibration; Radiation
    • Psychosocial Agents
    • Musculoskeletal Risks and Controls
    • Work Environment Risks and Controls
    • Managing Occupational Health

Assessed by a three hour written exam

  • Unit C: Workplace and Work Equipment Safety - 125 Hours

    • General Workplace Issues
    • Principles of Fire and Explosion
    • Workplace Fire Risk Assessment
    • Storage, Handling and Processing of Dangerous Substances
    • Work Equipment – General; Workplace Machinery; Mobile, Lifting and Access
    • Electrical Safety and Electricity at Work Regulations 1989
    • Construction Hazards and Controls
    • Workplace Transport and Driving for Work
    • Pressure System Hazards and Controls

Assessed by a three hour written exam

  • Unit D: Application of Health and Safety Theory and Practice - 56 Hours

Assessed by an 8,000 word work based project

There are no specific entry requirements but the NEBOSH National Diploma assumes you already have knowledge gained from studying a NEBOSH Certificate, or similar course, and it is highly recommended that you should have achieved such a qualification before starting the NEBOSH Diploma course.

RRC appreciates that there are many Health & Safety Qualifications throughout the world so do not want to force people to study a NEBOSH Certificate course when they already have the knowledge.  To help you decide whether you already have this assumed knowledge or would benefit from studying the NEBOSH Certificate first, see our knowledge checklist Guidance on Direct Entry to the NEBOSH Diploma.

Do not worry if you have a few gaps in your knowledge - with every RRC NEBOSH National Diploma course you will receive an electronic copy of our NEBOSH National General Certificate course materials for you to fill those gaps.

If you have any concerns as to your suitability for the NEBOSH Diploma, call us today for advice on +44 (0)20 8944 3100 or send us your questions here.

Units A, B and C of the NEBOSH National Diploma are each assessed by three-hour written examinations held in January and July each year.  

Exams can be sat at one of RRC’s UK Exam centres or in one of our network of 200+ exam centres throughout the world.

  • UK Exam Centres London, Birmingham, Glasgow, Manchester, Newcastle
  • RRC International Centres - Bahrain, Dubai, Georgia, Sudan, Tunisia
  • RRC International Exam Centre Network See Here 

Unit DNI Pending information from NEBOSH

Transitional Arrangements – Key dates
  • September 2016 – All course providers should begin teaching the new syllabi.
  • October/November 2016 - Students who are currently enrolled on the current syllabus and have not yet completed all units will be automatically transferred to the new syllabi. The marks for any passes achieved up to that point (A/IA, B/IB, C/IC, D/ID), will be transferred over to the new syllabi.  Marks achieved will count towards the new syllabi Diplomas for five years after they were achieved.
  • January and July 2017 examinations – Only content common to both the current and new syllabi will be examined.
  • February 2017 – First submission date for the new Unit DNI assessment (this is now a common unit for both National & International Diploma’s).
  • November 2017 – The last submission date for the existing Unit D/ID assessment.
  • January 2018 examinations onwards – Only content that features in the new syllabi will be examined.
  • August 2018 – Last resubmission date for existing Unit D/ID assessment.

RRC are experts in the design and delivery of health and safety training throughout the world. Over our 85 year history, a million students and thousands of businesses have chosen RRC as their preferred training provider. Our expert trainers and friendly support teams inspire total confidence in the individuals and companies we train and advise.

Quality Training from the Experts

Training is all about quality and this starts with our trainers. It has taken many years to build RRC’s team of expert trainers and we are proud to have the best international team of HSE trainers there is. This team is at the heart of everything we do; developing and updating our course content, delivering and assessing our courses, supporting our students, consulting and always making sure we are firmly focused on our customers’ needs.

The team is a highly effective mix of academics, practitioners and consultants with a wide range of experience across all sectors. It is led by two RRC Directors, both HSE practitioners in their own right:

  • Dr David Towlson PhD, BSc (Hons), Cert Ed (PCET), CMIOSH, AIEMA - RRC Director of Training and Quality
  • Hasan Alaradi MSc, RMST, DipSM, CMIOSH, MIIRSM - Managing Director RRC Middle East Operations

Excellence in Customer Service

Providing a good service is really important to RRC, as there is no point in having great trainers without excellent customer service. Whether you are enquiring about a course, registering for your exam or visiting any one of our training centres, you can be sure you will receive the very best customer service.

Commitment to Quality

RRC’s reputation has been built on quality and over our 85 year history; many hundreds of thousands of happy customers have enjoyed success in their qualifications and careers through studying with RRC. We work closely with the awarding and industry bodies to ensure our courses are fully up-to-date and aligned with the latest syllabus revisions, legislation changes and exam procedures. Our ISO 9001 accreditation demonstrates our commitment to continual improvement.

Great Results

RRC have an exceptional track record. The clear, engaging and interactive courses we deliver guarantee our students receive the best possible training and ensure they get a full understanding of both the subject matter and how the assessment works. This not only leads to exam success, but also develops the understanding and competency they will need to apply their knowledge in the workplace.

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