According to NFPA 1901, how soon must a fire apparatus with a completely discharged air system be able to move after start-up?

The requirement outlined in NFPA 1901 states that a fire apparatus with a completely discharged air system must be capable of moving within one minute after it has been started. This guideline is in place to ensure that fire departments can quickly and effectively respond to emergencies without unnecessary delays due to equipment readiness.

The rationale for this one-minute requirement revolves around the operational needs of fire services. When responding to an emergency, time is of the essence, and having an apparatus ready to mobilize swiftly is critical. A longer time frame, such as those indicated in the other choices, could hinder rapid response efforts and potentially impact the outcome of an incident.

This standard emphasizes the importance of maintenance and readiness of fire apparatus, ensuring that they can perform reliably under pressure, which is essential for the safety of both firefighters and the public.