NEBOSH International Diploma in Occupational Health and Safety

The NEBOSH International Diploma in Occupational Health and Safety (IDip) is the must have qualification for those whose ambition is to be a "Safety Professional" and have a high level career in HSE management.

The NEBOSH Diploma is the Gold Standard in health and safety qualifications
Study Online, by Blended Learning or In-Company. Plus Revision & Textbooks
Contact us on +44 (0)20 8944 3100 or email for all the latest information on this course

The NEBOSH Diploma is internationally respected by employers in all sectors. 

NEBOSH International Diploma Accredited Centre 335
Course Dates & Fees
  • Direct Line +44 (0)208 944 3100
  • UK Freephone 0800 756 9410
  • Skype rrctraining
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Benefits of achieving the NEBOSH International Diploma:

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

RRC is an accredited NEBOSH Learning Partner offering the NEBOSH Diploma throughout the world:

  • Online: around 450 hours of study - available worldwide
  • Blended Learning: 3 One week workshops plus directed online learning in Dubai
  • Classroom: 35 days, delivered in-company worldwide
  • In-Company Training: available worldwide

RRC offer you more than any other NEBOSH International Diploma provider:

  • Over 90% of RRC students have successfully completed their NEBOSH Diploma
  • 90 years experience in training & education
  • 45 years experience in delivering health and safety training
  • Choice of learning methods
  • Above average exam pass rates
  • Teaching and support from a team of 40 expert tutors

NEBOSH International Diploma in Health & Safety Content

The NEBOSH International Diploma in Occupational Health and Safety is based on UK Legislation and builds on the knowledge gained at NEBOSH Certificate level. It is made up of four units which must be completed within five years:

Unit IA: International Management of Health and Safety - 154 Hours

  • IA1 - Principles of Health and Safety Management 
  • IA2 - Regulating Health and Safety 
  • IA3 - Loss Causation and Incident Investigation 
  • IA4 - Measuring and Reviewing Health and Safety Performance 
  • IA5 - The Assessment and Evaluation of Risk 
  • IA6 - Risk Control 
  • IA7 - Organisational Factors 
  • IA8 - Human Factors 
  • IA9 - The Role of the Health and Safety Practitioner

Unit IB: International Control of Hazardous Agents in the Workplace - 115 Hours

  • IB1 - Managing Occupational Health  
  • IB2 - Identification, Assessment and Evaluation of Hazardous Substances  
  • IB3 - The Control of Hazardous Substances  
  • IB4 - The Monitoring and Measuring of Hazardous Substances  
  • IB5 - Biological Agents 
  • IB6 - Noise and Vibration  
  • IB7 - Radiation  
  • IB8 - Mental Ill-Health and Dealing with Violence and Aggression at Work  
  • IB9 - Musculoskeletal Risks and Controls  
  • IB10 - Work Environment Risks and Controls

Unit IC: International Workplace and Work Equipment Safety - 120 Hours

  • IC1 - Workplace Welfare Requirements and Specific Workplace Issues 
  • IC2 - Fire and Explosion 
  • IC3 - Workplace Fire Risk Assessment 
  • IC4 - The Storage, Handling and Processing of Dangerous Substances 
  • IC5 - Work Equipment
  • IC6 - Workplace Machinery 
  • IC7 - Mobile, Lifting, Access and Work at Height Equipment 
  • IC8 - Electrical Safety 
  • IC9 - Construction and Works of a Temporary Nature - Hazards and Controls 
  • IC10 - Workplace Transport and Managing Work-Related Road Risk

Unit DNI: Application of Health and Safety Theory and Practice

  • An 8,000 word work-based project


Units IA, IB and IC of the NEBOSH International Diploma are each assessed by three-hour written examinations. Unit DNI is assessed by an 8,000 word work based project.

Exams are held in January and July each year. Unit DNI can be submitted in February, May, August or November each year.

NEBOSH International Diploma in Health & Safety ONLINE

  • Available 24/7 worldwide
  • Around 450 hours of study + exams (can be completed in 12-30 Months)
    • Unit IA - 155 hours
    • Unit IB - 115 hours
    • Unit IC - 120 hours
    • Unit DNI - 60 hours
  • Ideal for those whose lifestyle needs a really flexible high quality learning method

Online Learning with RRC

  • RRC Guaranteed Support & Money Back Guarantee
  • Mobile-friendly, innovative, interactive online study including videos, animations, quizzes, tests and reviews of your progress
  • Unlimited tutor support by a team of expert tutors
  • Full PDF copy of the study text to download for offline study
  • Over 190 exam centres available throughout the world
  • Interest Free Payment Plans
Sign Up for your FREE Trial Here
Overview of the NEBOSH International Diploma in Health & Safety Online Course

NEBOSH International Diploma in Health & Safety Blended Learning

  • Available in Dubai
  • 3 x 5-day workshops (one week for units IA, IB, IC) + around 300 hours of directed online private study
  • Ideal for those with limited time but want the motivation and support of classroom learning
  • London
    Unit IC: 24-28 Oct 2021
  • Dubai
    Unit IC: 25-29 Oct 2020
    Unit IA: 8-12 Nov 2020
    Unit IB: 13-17 Jun 2021

Blended Learning with RRC

  • Detailed study plan guiding you on what to study online to prepare for your classroom session
  • Expert teaching and support from highly experienced NEBOSH approved trainers.
  • Professional training environment - providing the perfect environment to learn, with refreshments throughout the day, including lunch
  • Online Study through RRC's mobile-friendly, innovative, interactive online learning platform including videos, animations, quizzes, tests and reviews of your progress
  • World class learning resources - full colour printed study texts supplied on the first day of your workshops.
  • Advice and support from the RRC Trainer & Customer Service Teams.
  • RRC Guaranteed Support & Interest Free Instalment Plans.

NEBOSH International Diploma in Health & Safety Revision Guides

  • RRC Revision Guides: Concise notes and exam practice, available as printed books or PDF downloads
  • Ideal for those who would like additional support with their exam preparation
NEBOSH International Diploma in Health & Safety Revision Books

Revision Guides

RRC’s NEBOSH Diploma Revision Guides combine concise revision notes with exam-style questions and model answers - for a fully effective revision tool to help you achieve NEBOSH Exam Success. Key features are:

  • Concise overview of all the key NEBOSH syllabus topics
  • NEBOSH exam-style questions with sample answer plans and model answers so you can effectively prepare for the exam
  • Available for Units IA, IB & IC as either printed A5 booklets or electronic PDF files

NEBOSH International Diploma in Health & Safety TEXTBOOKS

  • Designed to fully support students throughout their studies.
  • Full colour, illustrated textbooks covering the complete NEBOSH International Diploma syllabus.
  • Developed by a team of expert NEBOSH tutors working closely with educational experts and feedback from our customers.
NEBOSH International Diploma in Health & Safety Textbooks

RRC Textbooks

All our materials are designed to be easy to use and understand. They include:
  • Complete coverage of the NEBOSH International Diploma syllabus
  • Key information summarised at the start of each section.
  • Explanations of words or phrases that may be unfamiliar.
  • References to sources of further information.
  • Revision questions to test your knowledge as you progress.
  • Practice exam-style questions with step by step guidance on how to answer them.

NEBOSH International Diploma in Health & Safety IN-COMPANY

RRC is a fully approved NEBOSH Gold Learning Partner and can help you cost-effectively train your staff.

  • In-Company Classroom: effective and cost & time efficient. Available Worldwide
  • Training Contracts: send your staff to our open classroom courses in UK (London plus 5 Regional Centres), Dubai, GeorgiaTunisia, Ghana, Nigeria, SpainSudan & Turkey

  • Online: ideal for training teams across multiple sites, with discounts on standard fees for bulk licences
  • Bespoke: courses can be tailored to meet your specific sector and/or translated into any language

Why Businesses Choose the NEBOSH International Diploma:

  • Course approved and examined by NEBOSH, an internationally recognised health & safety body
  • Certificate issued by NEBOSH, guaranteeing quality of training and delegates achievement
  • High quality training guaranteed through RRC’s Gold status in the NEBOSH Learning Partner Scheme
  • Improved productivity & profitability through:
    • Reduction in accidents and safety incidents
    • Improved workforce satisfaction through increased safety awareness throughout the organisation
    • Enhanced reputation with customers and suppliers
    • Reduction in costs arising from avoidable insurance claims and legal fees

NEBOSH International Diploma in Health & Safety Testimonials

Emily Alcorn - NEBOSH Diploma - e-learning The online platform was easy to use, engaging and accessible at my own convenience. Any matters raised with Customer Services were dealt with promptly and I particularly liked the ability to download course books...

NEBOSH International Diploma in Health & Safety FAQs

Where can I sit my exam?

Exams can be sat at one of RRC's UK exam centres or in one of our network of 190+ exam centres throughout the world.

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

How long does the NEBOSH International Diploma take?

This is dependent on how you chose to study the NEBOSH Diploma and how much time you have available.

RRC’s Online students spend between 18 and 30 months completing the diploma with an average of around 18 months.  RRC allow up to 24 months to complete each unit, with NEBOSH allowing a total of 5 years to successfully complete all the NEBOSH National Diploma units.

RRC's Classroom and Blended students average around 18-24 months to complete the course

What are the Entry Requirements for the NEBOSH Diploma?

The NEBOSH International Diploma builds on knowledge that is gained from studying a NEBOSH Certificate, or similar course, and it is highly recommended that such a qualification is gained before starting the NEBOSH Diploma course.  But you may also have that knowledge from your previous experience.  Call us for details on the knowledge required prior to starting the NEBOSH Diploma or see our Guidance on Direct Entry to the NEBOSH Diploma.

What does Gold Learning Partner mean?

RRC are delighted to have been evaluated as a NEBOSH Gold Learning Partner, the highest level in the NEBOSH Learning Partner programme.

NEBOSH introduced a Learning Partner Programme in September 2019 which recognises those Learning Partners that provide learners with the best possible learning experience.  

All NEBOSH Learning Partners have been classified based on their performance against the programme’s principles which represent global best practice in the provision of course tuition and support. The key principles are:

  • Ensure all learners understand what is expected of them and what they can expect from their Learning Provider.
  • Create a learning environment that is engaging and encourages interaction that is appropriate for the course and type of delivery. 
  • Provide accurate course materials and continually update and improve them. 
  • Ensure tutors are qualified, knowledgeable, competent and engaging. 
  • Give learners feedback on their progress and provide appropriate support. 
  • Review course delivery and learner feedback and action as necessary. 

Learner Partner Status

Learning Partners can be identified as follows:

  • Gold - greatly exceeds the principles
  • Silver - exceeds the principles
  • Bronze - meets the principles

How long are the exams?

Each exam (IA, IB, IC) is three hours. In addition to this you will receive 10 minutes reading time at the start of the exam.
Unit DNI consists of an 8,000 word assignment takes around 50 hours to complete.

What does Unit DNI include?

Unit DNI consists of an 8,000 word assignment. This is carried out at your workplace and you will be assigned a tutor to submit elements to along the way.

Can I try the online course before I enrol?

Yes, you can sign up for a free e-learning trial here.

Can I pay the course fees in instalments?

Course fees can be paid in up to a maximum of four monthly instalments. For UK customers instalments can be paid over 12 months. Click here for more information.

What is the difference between the National and International Diploma?

The National Diploma is based on UK legislation and is recognised worldwide. The International Diploma is based on International Standards and Best Practice and is recognised by employers outside of the UK.

Do I have to start with Unit IA of the NEBOSH Diploma?

No. You can start with any of the three examinable units (IA, IB or IC). NEBOSH advice is that you start with the unit that you have the most interest or experience in. 

Can I get Chartered Membership of IOSH (CMIOSH) by completing the NEBOSH International Diploma?

The NEBOSH International Diploma meets the academic requirements for Graduate Membership (GradIOSH) of the Institution of Occupational Safety and Health (IOSH), the first step to becoming a Chartered Member of IOSH (CMIOSH). You will then need to develop a Skills Development Portfolio and then attend a Peer Review Interview.

What is the difference between online, elearning and distance learning?

Online & elearning are just different words for the same thing. Distance Learning, means learning at a distance but is commonly used to describe the more traditional paper based study, RRC do provide the complete study text which you can download and study off line thus giving you the option of how you study the course

What educational level is the NEBOSH International Diploma?

The NEBOSH International Diploma is the equivalent of a level 6 qualifications (EQF), which is equivalent to a University honours degree.

What happens if I fail the exams?

If you do not pass your NEBOSH National Diploma exams on your first attempt, you are able to book a re-sit with our Exams team.

Do we have a graduation Ceremony?

Yes, all candidates who successfully complete the NEBOSH International Diploma are invited to attend a Graduation Ceremony. This is usually held in June at the University of Warwick.

Can I do the exams online?

Exams cannot be completed online, exams must be completed at an approved centre, which will be arranged by our exams team.

Are the exams open book?

No. You cannot take any learning materials into the exam with you.

Do I have to pay VAT if I am based outside the UK?

Only companies outside of the UK who can provide a valid VAT number will be exempt from VAT. All individuals irrespective of their location will have to pay VAT.

Would I be able to get past exam papers?

You are able to access a past paper and examiners feedback on expected answers from the NEBOSH website. Course providers are not allowed to sell/give past papers to students.

Guidance for CSP qualified students

Guidance for CSP qualified students taking advantage of the cooperation agreement between NEBOSH and BCSP

The agreement between NEBOSH and BCSP (Board of Certified Safety Professionals) allows CSP Holders to sit NEBOSH Exams without studying the NEBOSH Diploma course. In practice, whilst there's some overlap in course coverage between CSP (Certified Safety Professional) and the NEBOSH's Health and Safety Diplomas, there's quite a bit that's different. The style of the exams and assignments is also a bit different.

RRC will give CSP Holder access to our online diploma programme (national or international) for a substantial discount. The course includes all the content you'll need, unlimited access to an online tutor and exam fees.

So, what do you need to do?

1. Decide what version of the Diploma you want to do - National or International.

  • National Diploma - based on UK legislation and ideal if you intend to be working in the UK.
  • International Diploma -Based on internationally accepted principles.

Both qualifications are aligned in terms of topics and principles. Both are divided into 4 units (A, B, C, D) and are are assessed in the same way - 3 x 3 hour exams plus one assignment.

2. Download NEBOSH BSCP guide here.   

3. Review Part 3 of that NEBOSH BSCP guide.  It contains a mapping document, that maps what you already have (CSP) to the NEBOSH Diploma). If you've decided to do National Diploma, look at the mapping document section 3.7. Otherwise it's section 3.8 you need for international. They use a traffic light system. Anything flagged in red (or "3") means it's probably going to be very new to you.  Anything in green should be familiar to you.

4. Get started - RRC course content follows the NEBOSH syllabus very closely, so that map will work when you study your course. Any problems your RRC tutor is on hand to help.

5. Exam Practice - Prepare for your exams and assignments. Exam revision and preparation is more than just studying. You need to get practice retrieving and applying knowledge under exam conditions. We give you mock exams, past exam style questions

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