Level 6 National Diploma in Occupational Health and Safety, the UK’s gold-standard qualification for senior health and safety professionals.
3 learning types available
The NEBOSH Diploma in Occupational Health and Safety (also known as the NEBOSH National Diploma ) is a Level 6 qualification, recognised by IOSH as meeting the academic requirement for Graduate Membership (GradIOSH) and the established route to Chartered (CMIOSH) status.
Employers across construction, manufacturing, oil and gas, logistics, healthcare and the public sector list the NEBOSH Diploma as a preferred or required qualification for senior safety roles. The qualification is delivered across three units (DN1, DN2 and DN3), combining technical knowledge, applied risk management and a workplace-based assignment. The full NEBOSH Diploma course can be studied face-to-face, live virtual or in-company.
The NEBOSH Diploma is the right next step if you:
Not sure yet? If you’re newer to the profession, the NEBOSH General Certificate is the recognised starting point and a prerequisite-equivalent for the Diploma.
By the end of the NEBOSH National Diploma you’ll be operating as the senior health & safety voice in the room, confident on strategy, the technical detail and the business case.
Sit at the table when senior leaders make decisions, with the credibility and language to shape policy.
Move teams beyond compliance to a culture that flags hazards and prevents incidents before they happen.
Embed health & safety into restructures, expansions and new ways of working without losing momentum.
Apply advanced hazard identification, evaluation and loss-causation methods to deliver evidence-based recommendations.
Take confident command of fire, electrical, chemical, ergonomic, contractor and occupational health risks.
Set leading and lagging indicators, monitor outcomes and improve safety performance year on year.
The strategic foundations: how UK law, leadership and culture shape effective health & safety management.
The day-to-day technical hazards a senior practitioner is expected to identify, evaluate and control across the modern workplace.
An 8,000-word workplace-based assignment where you apply DN1 and DN2 to a real organisation, scoping a review, analysing priority risks and presenting a justified action plan to senior leaders.
KeyOstas tutors coach you from scoping through to NEBOSH submission.
Get the complete NEBOSH National Diploma specification, course handbook and current cohort dates sent to your inbox, or speak to a tutor about your career goals.
New or aspiring H&S professionals, line managers and supervisors with H&S responsibilities.
Around 80–120 study hours (typically 6–10 weeks part-time).
Open-book exam plus a workplace risk-assessment project.
H&S Officer, Advisor, Coordinator or supervisor with H&S duties.
Supports Tech IOSH membership.
Experienced practitioners moving into senior, strategic or specialist roles.
Around 460–540 study hours, usually completed over 12–24 months.
Three written exam units plus a substantial workplace research project.
H&S Manager, Senior Advisor, HSE Manager, Head of H&S, Consultant.
Supports Graduate IOSH membership and progression toward CMIOSH (Chartered).
Indicative UK ranges. Higher in oil & gas, construction, pharma and London.
A scenario-based written response over a 24-hour window. No traditional exam day, plan it around work commitments.
A scenario-based written response over a 24-hour window. No traditional exam day, plan it around work commitments.
Assessed via a 24-hour open-book scenario response, demonstrating how you would tackle real workplace risks.
An 8,000-word workplace-based assignment, review a real organisation, identify risks and recommend a justified action plan.
Every Diploma tutor is a working senior health & safety professional with hands-on industry experience.
Structured tutor support through the 8,000-word workplace assignment, from scoping to submission.
The NEBOSH Diploma with KeyOstas was instrumental in advancing my career. The depth of curriculum and the calibre of trainers, senior practitioners themselves, prepared me to handle complex strategic safety challenges.
Gemma Stevens, Senior Health and Safety Manager
Every Diploma tutor is a working senior health and safety professional, not a career classroom instructor. Our learners achieve an 85%+ pass rate across NEBOSH qualifications.
Choose face-to-face at our Southam centre, live virtual classroom, or in-company at your site. Pay in 3 interest-free instalments with Klarna, or invoice your employer.
Tutor-led classroom learning at our flagship centre in Warwickshire. Free parking, lunch and refreshments included.
Tutor-led classroom learning at our flagship centre in Warwickshire. Free parking, lunch and refreshments included.
Same trainers, same syllabus, no travel. Join scheduled live sessions from anywhere in the UK.
We come to you. Cost-effective for groups of 4 or more, flexible scheduling around your shift patterns.
The KeyOstas NEBOSH Diploma costs £1,645 per unit for face-to-face or live virtual delivery, DN1, DN2 or DN3 booked individually. Booking all three units together is £4,274.99 , our All 3 Units, One Great Price bundle, which saves £660 versus paying for each unit separately. In-company group rates are tailored to delegate numbers and delivery format, typically lower per delegate when training a team of four or more on your site or virtually.
Pricing as of April 2026; subject to NEBOSH licensing changes. Bundle saving calculated as £1,645 × 3 (£4,935) less £4,274.99 bundle price. See Learning options higher up the page for live cohort dates.
Speak to a senior NEBOSH tutor about your situation, study mode and start dates.
Talk to a tutor →Or talk to a tutor: 0330 056 9534
Last reviewed: April 2026 by KeyOstas senior tutors.
