| NEBOSH | National Environmental Board of Safety Health 
| Others |
| NEBOSH | National Examination Board for Occupational Safety and Health
| Others |
| NEBOSH | National Examination Board in Occupational Safety and Health
| Others |
| NEBOSH | National Examination Board in Occupational Safety Health
| Others |
| NEBOSH | National Examination Board Occupational Safety Health
| Others |
| NEBOSH | National Examination Board Of Safety & Health
| Others |
| NEBOSH | National Examining Board for Occupational Safety and Health
| Others |