NEBOSH Diploma in Occupational Health and Safety Unit A-D

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The NEBOSH National 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.

The 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.

This syllabus is no longer available to anyone registered after November 2021. For anyone wanting to study for a NEBOSH Diploma must refer to (this link), the new syllabus- NEBOSH Occupational Health and Safety Management for Professionals


Units / Modules

Unit A: Managing Health and Safety

• September 2021- January 2022


  • 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

• 16 Oct – 15 Jan 2021 TBA

• £1900.00

  • 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

  • September 2020- January 2021 
  • 13 weeks (1 day a week)
  • £1500.00 (VAT, Exam fee and Textbook included)
  • Rothwell Campus
  • 9:00am-4:30pm
  • Valid I.D is required on enrolment/ start date (passport or driver’s licence)
  • Parking is completely free.
  • 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 o 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
  • Registration dates can be found on the NEBOSH website.

Assessed by an 8,000 word work based project

Benefits / Skills

  • Valued by employers – NEBOSH Diploma holders get higher salaries.
  • Boost your career prospects – NEBOSH Diploma holders are in demand.
  • Allows you to use the letters 'DipNEBOSH' after your name.
  • Entitles you to graduate as a member of IOSH (GradIOSH), the first step to becoming a Chartered Health and Safety Practitioner.
  • Meets the entry requirements for many safety related Master’s programmes offered by UK universities.

Assessment Types

The NEBOSH Diploma is assessed by a three hour written exam and a written assignment. All questions within the course examination are compulsory and papers are marked externally by certified NEBOSH appointed examiners.

Entry Requirements

Acquisition of the NEBOSH General Certificate in Occupational Health and Safety.

Career Progression

This is the highest level you can achieve for this qualification. We suggest that you do a refresher course every 3 years.

A step in the right direction to progress in the health and safety field.

Passing this NEBOSH National Diploma qualification will allow you to take your career to the next step and provide you with the academic credentials to be a competent professional for your organisation.

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Course Details


2 years

Course Code


Yorkshire Centre for Training and Development
Leeds City College
Leeds City College