When should a vehicle not be returned to service after system discharge?

A vehicle should not be returned to service until the dry chemical extinguishing system has been recharged and is operational because the integrity and functionality of the fire suppression system must be fully restored. If a vehicle is put back into service without ensuring that the system is ready to operate, it poses a significant safety risk. In the event of a fire or emergency, the system would be ineffective, potentially leading to greater damage, injury, or loss of life.

Recharging and verifying that the system operates properly ensures that the vehicle remains safe for use and compliant with fire safety standards. The other considerations, like cleaning or inspections by safety officers, do not address the critical need for the fire suppression system to be fully operational.