As a management level engineering officer on a motor vessel equipped with engines capable of burning both high sulfur content residual fuels and low sulfur content distillate fuels, on approaching arrival to a US port, when would you plan for the fuel changeover to be accomplished?
A) When entering the SOx emission control area set by local authorities.
B) When entering US territorial boundaries 12 miles from the coastline.
C) When entering the US economic exclusion zone 200 miles from the coastline.
D) When entering US navigable waters 3 miles from the coastline.
