NEBOSH International Diploma About the Course NEBOSH International Diploma is a worldwide recognized health and safety qualification offering students with definite knowledge and practice to be expert international health and safety professionals. NEBOSH Diplomas are globally recognised qualifications aimed at professional health and safety advisors and environmental practitioners. There is no prerequisite for this training however it is highly recommended to have a broad knowledge in the workplace health and safety. An International General Certificate or a National General Certificate is suggested. NEBOSH International Diploma is divided into four units: Unit IA: International management of health and safety Unit IB: International control of hazardous agents in the workplace Unit IC: International workplace and work equipment safety Unit ID: International application of health and safety theory and practice Examination: Written examinations (for Unit IA, Unit IB & Unit IC) + Assignment unit (Unit ID) Exams are held in the month of January and July of each year. All units to be successfully completed within 5 years to receive NEBOSH International Diploma Certificate Course Duration - Classroom Learning: Six months