The Next Step: NEBOSH Level 6 National Diploma
For health and safety professionals looking to move into a more senior or specialist role, the qualification formerly known as the 'NEBOSH Diploma' is now called the NEBOSH Level 6 National Diploma in Occupational Health and Safety. It's a Level 6 qualification — equivalent to degree level — and is one of the most respected health and safety qualifications in the UK.
It's particularly suited to anyone who already holds a NEBOSH General Certificate (GNC1/GNC2) and is ready to deepen their knowledge, or anyone who's been given overall responsibility for health and safety within their organisation.
How the Qualification Is Structured
The Diploma is made up of three units, which can typically be studied via e-learning — allowing candidates to balance study with their existing work commitments rather than taking extended time away from the workplace.
- Unit A – Managing health and safety covers the principles of health and safety management, organisational structures, and the legal framework underpinning UK health and safety law.
- Unit B – Hazardous agents in the workplace covers common hazards found across industries, including occupational, ergonomic, chemical, biological and toxicological risks.
- Unit C – Workplace and work equipment hazards and risk control covers wider issues such as work equipment, machinery, mechanical handling, and pollution and waste management.
Where It Can Take Your Career
Holding the NEBOSH Level 6 National Diploma, combined with relevant work experience, supports applications for Graduate (GradIOSH) and ultimately Chartered (CMIOSH) membership with IOSH — recognised marks of seniority and competence in the health and safety profession. For many health and safety managers, this qualification represents the ceiling of formal study needed to operate confidently at a senior level.
Frequently Asked Questions
Is the NEBOSH Diploma the same as the NEBOSH Level 6 National Diploma?
Yes — NEBOSH has updated the naming of this qualification to reflect its Level 6 (degree-equivalent) status, but the qualification itself and its standing with employers are unchanged.
Do I need the NEBOSH General Certificate first?
It's not always a strict requirement, but the Diploma builds on the knowledge covered in the General Certificate (GNC1/GNC2), so most candidates have already completed it or have equivalent experience.
How long does the Diploma take to complete?
This depends on the study method and how much time a candidate can dedicate alongside work, but e-learning candidates are typically given an extended period — often up to a year — to complete all three units.
What can the Diploma lead to?
Beyond career progression into senior health and safety roles, it supports professional membership progression with IOSH, including Graduate and Chartered status.