Understanding the NEBOSH IGC

The NEBOSH International General Certificate (IGC) is one of the most recognized entry points into a health and safety career worldwide. It isn't a single exam — it's made up of two separate units, IG1 and IG2, each testing a different part of your safety knowledge.

Many students searching for a NEBOSH course get confused about whether they need both units, whether they can be studied separately, and which one is harder. This guide breaks it down clearly.

What Is NEBOSH IG1?

IG1 (Management of Health and Safety) covers the theory side of workplace safety: health and safety management systems, risk assessment principles, workplace hazards, and how organizations control them.

It is assessed through an open-book exam that you complete within a set window after receiving the paper, testing your ability to apply what you've learned to realistic scenarios rather than just recall facts.

What Is NEBOSH IG2?

IG2 (Risk Assessment) is the practical component. Instead of a written exam, you carry out a real workplace risk assessment, identifying hazards, evaluating risks, and recommending control measures in a structured report.

This unit proves you can take classroom knowledge and apply it on the ground — something employers value just as much as the theory covered in IG1.

Key Differences Between IG1 and IG2

Here's how the two units compare side by side:

01

Assessment Method

IG1 is an open-book written exam. IG2 is a practical risk assessment carried out at a real workplace and submitted as a report.

02

Focus Area

IG1 focuses on management systems and safety theory. IG2 focuses on hands-on hazard identification and control.

03

Time Commitment

IG1 typically takes longer to study due to the breadth of content, while IG2 requires dedicated time to visit a workplace and complete the assessment.

04

Certification

You need to pass both IG1 and IG2 to be awarded the full NEBOSH International General Certificate.

Which One Should You Study First?

Most training providers, including HSE Experts & Consultancy, recommend completing IG1 before IG2. The theory you learn in IG1 — hazard categories, risk control hierarchies, legal frameworks — gives you the foundation you need to carry out a strong risk assessment in IG2.

That said, some students choose to study them in parallel if they're on a fast-track schedule with guided support from an approved trainer.

Conclusion

IG1 and IG2 aren't competing options — they're two halves of the same qualification, one theoretical and one practical. Understanding what each one demands makes it much easier to plan your study schedule and walk into both assessments prepared.