Coast Guard Regulations (46 CFR) require that quick-closing valves on a fuel oil service system should be installed as close as is practicable to the __________.

Correct Answer: Option B — boiler front fuel oil header

Coast Guard regulations mandate the installation of remote quick-closing shutoff valves as close as practicable to the boiler front fuel oil header. This allows rapid isolation of fuel supply to the burners from outside the space during a machinery space fire.