National/International Diploma in Occupational Health and Safety

Qualification structure 

National Diploma in Occupational Health and Safety 

• Unit A: Managing health and safety (Written Assessment) 
• Unit B: Hazardous substances/agents (Written Assessment) 
• Unit C: Workplace and work equipment safety (Written Assessment) 

International Diploma in Occupational Health and Safety 

• Unit IA: Managing health and safety (Written Assessment) 
• Unit IB: Hazardous substances/agents (Written Assessment) 
• Unit IC: Workplace and work equipment safety (Written Assessment) 

Common unit 

• Unit DNI: Application of health and safety management in the workplace (Project Based Digital Assignment) 

Qualifying Periods 

The latest result for each unit is shown on your URN. If a higher mark was achieved at an earlier sitting, this result is also shown and indicated in the ‘High valid mark’ column.  

A Pass must be obtained in all units within a five-year period in order to achieve this qualification. If you require additional time to complete your qualification you may apply to extend the validity period of your units. Please contact your Learning Partner to discuss the possibility for a unit validity extension. 

Special consideration 

If your Learning Partner has submitted a request for special consideration on your behalf and this has been acknowledged by NEBOSH, then this will have been considered prior to your result being confirmed. For full details, see our Special Consideration Policy. 

If you have received a refer result 

If you have received a refer result you have not achieved the required pass standard. To allow you to successfully achieve the qualification you will need to make arrangements to re-sit the assessment, which can be done by contacting your Learning Partner. 

If your result does not meet with your reasonable expectations 

NEBOSH does support the rights of learners and/or Learning Partners to request a clerical check and/or a remark of an assessment. For further information see the Enquiries about Results (EARs) procedure.

All requests must be received, with full payment, within 20 working days of the results notification date (please refer to the results expected date on your Unit Results Notification). Requests received after this date cannot be processed. 

Please note: This service does not provide feedback on performance and by requesting this service there is no guarantee that a mark will be adjusted upwards after a re-mark.  

It is also important to note that a mark may also be adjusted downwards following an Enquiry About Result. 

NEBOSH does recommend that you discuss your results with your tutor prior to submitting an Enquiry About Result. 

How your overall grade is calculated 

Once you have achieved a ‘Pass’ in all units the aggregate percentage mark from all units is used to determine the qualification grade, according to the following criteria.  

Please note the grading criteria does not apply to individual units: 

• Distinction, 280 % or more 
• Credit, 240 - 279 % 
• Pass, 185 - 239 % 

If you have completed your qualification 

Please accept our congratulations on your achievement. Unit certificate(s) will be issued for each successful unit declared on this unit result notification (URN). 

If you have passed all of the required units for this qualification within the qualifying period then your qualification parchment will be printed and dispatched with your unit certificate(s). 

 Your unit certificate(s) and qualification parchment will be sent to your Learning Partner within 20 working days of the original result notification date (please refer to the results expected date on your Unit Results Notification). 

If the address we have for you is within the United Kingdom, then your unit certificate(s) and qualification parchment will be sent directly to you. 

How your name will be printed on your Unit Certificate and Qualification Parchment 

Your name will appear on your Unit Certificate(s) and Qualification parchment as shown on your Unit Result Notification. Names exceeding 60 characters may appear over two or more lines. 

Your full legal name must be used for your Unit Certificate(s) and Qualification Parchment.