The NEBOSH National General Certificate and NEBOSH International General Certificate are both versions of the NEBOSH General Certificate. The National General Certificate course is available in the UK only and the International General Certificate is available to all countries outside of the UK.
Both NEBOSH Certificates are the same safety qualification level, have the same units, elements and learning outcomes and they both follow the same exam structure and grading system.
The NEBOSH course content isn’t that much different either. They both teach you how to manage health and safety issues based on the “Plan-Do-Check-Act” management system. But each NEBOSH Certificate reference different legislation and regulation in the finer details. Find out more about the difference in versions here.