Under RIDDOR, dangerous occurrences must be reported by the quickest practicable means and followed by a written report on approved form F2508 within how many days?

• A. 10 days
• B. 7 days
• C. 30 days
• D. 60 days

Answer: (A)

Under RIDDOR, a dangerous occurrence must be reported immediately by the quickest practicable means, and a written report on approved form F2508 must follow within ten days. The immediate report gets the issue into the hands of the enforcing authority quickly to enable prompt action and prevent further risk. The written form then provides a full, formal record for investigation and enforcement. The ten-day limit is the regulatory requirement; seven days would be unrealistically tight, while thirty or sixty days would delay necessary investigation and corrective action.