Number of Employees
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First Aid Needs Assessment: Workforce Size and First Aid Provision
Why Workforce Size Matters in First Aid Planning
When carrying out a First Aid Needs Assessment, the number of employees is a critical factor in deciding how many trained first aiders, first aid kits, and emergency resources are necessary. The Health and Safety Executive (HSE) provides guidelines to help employers determine minimum first aid requirements based on workforce size and risk level.
First Aid Requirements for Low-Risk Workplaces
- Fewer than 25 employees: An appointed person is generally sufficient.
- 25 to 50 employees: At least one Emergency First Aid at Work (EFAW) trained individual.
- More than 50 employees: One First Aid at Work (FAW) trained individual per 100 employees.
First Aid Requirements for High-Risk Workplaces
- Fewer than five employees: At least one appointed person.
- 5 to 50 employees: At least one EFAW or FAW trained first aider.
- More than 50 employees: One FAW-trained first aider for every 50 employees.
Additional Considerations for High-Risk Industries
In very high-risk sectors such as heavy manufacturing, forestry, or hazardous chemical industries, businesses should consider:
- Providing Critical Injury Kits or trauma packs.
- Advanced life-support training for selected staff members.
Shift Patterns, Remote Workers, and Ongoing Review
Employers must account for shift work, night work, and multi-site operations. Portable first aid kits and clear emergency communication systems are vital for remote or lone workers. Regular reviews are necessary to adjust first aid provisions as workforce numbers or workplace risks change.
Conclusion
By accurately assessing employee numbers and associated risks, employers can ensure adequate first aid coverage, creating a safe, responsive working environment that meets both legal obligations and ethical standards.

