This fitness for work assessment toolbox talk from Health & Safety Zone provides a comprehensive, SEO‑optimised guide for employers, supervisors and occupational health professionals on conducting medical fitness evaluations, ongoing health surveillance, and complying with UK legislation. It highlights key hazards such as undiagnosed medical conditions, chemical exposure risks, psychosocial stressors, noise and vibration exposure, and explains how each can lead to injury, illness or loss of productivity. The talk is suitable for construction, manufacturing, transport, healthcare, utilities and any sector with safety‑critical duties. It is fully editable and can be customised with site‑specific details, risk register entries and company policies. Use this resource during inductions, regular safety briefings and return‑to‑work meetings to ensure consistent communication of fitness requirements. It supports HSE inspections by demonstrating compliance with the Health and Safety at Work Act 1974, the Management of Health and Safety at Work Regulations 1999, the Equality Act 2010, the Control of Noise at Work Regulations 2005, the Control of Vibration at Work Regulations 2005 and BS EN 15757 guidance on medical fitness for work. Employers should also review the risk assessment regularly and update the fitness for work policy in line with HSE occupational health guidance. HSE occupational health guidance and the Management of Health and Safety at Work Regulations 1999 provide further detail. Ensure regular review of the fitness for work policy to stay aligned with HSE updates.