HSE Compliant Accident Report Book RIDDOR Compliant. GDPR Compliant. This accident book has been updated (May 2018) to incorporate the new General Data Protection Regulations (GDPR). The accident book contains 20 perforated sheets and can be removed and filed to comply with your GDPR policy. Accident books should be kept for a minimum of 3 years or longer depending on your data policy. Compact A5 size which can fit easily in to a First Aid Kit.