A telehandler operator is using a personnel work platform at a construction site. The platform has a guardrail system. According to CSA Z150, which of the following statements regarding fall protection for personnel working from this platform is correct?

Question: A telehandler operator is using a personnel work platform at a construction site. The platform has a guardrail system. According to CSA Z150, which of the following statements regarding fall protection for personnel working from this platform is correct?

Answer options:

• Workers on the platform are only required to use a fall arrest system if the platform height exceeds 3 metres. ✅ Workers on the platform must always be secured by a personal fall arrest system (PFAS) when working from an elevated platform.
• If the guardrail height is at least 1.1 metres, a personal fall arrest system is not required.
• A fall arrest system is only necessary if the platform's primary guarding system fails or is removed.

Correct answer: Workers on the platform must always be secured by a personal fall arrest system (PFAS) when working from an elevated platform.

Explanation: CSA Z150, which governs mobile work platforms, mandates that workers must always be secured by a personal fall arrest system (PFAS) when working from an elevated platform, regardless of the platform height or the presence of guardrails. Guardrails provide passive fall protection but do not substitute for a PFAS.