What is the maximum capacity of portable fire extinguishers allowed on vessels?

The maximum capacity for portable fire extinguishers on vessels is typically aligned with safety regulations that address fire safety onboard. According to the regulations and guidelines set forth by the Coast Guard, portable fire extinguishers must be easily manageable and accessible to the crew in case of an emergency. A capacity of 3 gallons strikes a balance between sufficient firefighting capability and the practicality of handling the extinguisher when needed.

While smaller extinguishers could be inadequate for larger fires and larger extinguishers may be cumbersome to operate effectively, 3 gallons provides a reasonable amount of extinguishing agent to be used in various types of fire scenarios commonly encountered on vessels. This capacity also ensures that crew members can operate the extinguisher without excessive strain, thereby enhancing safety and effectiveness during an emergency response.