Underway and making way

	The word "underway" means a vessel is not at anchor, or made fast to the shore, or aground.
	"Making way" means the vessel is making way through water.
	If the vessel is drifting and moving with current, she is underway but not making way.
	If a vessel's engine is stopped, but she is still moving through water with the momentum, she is making way.
	A making way vessel has control on her rudder and direction.
	All making way vessels are underway.
	An underway vessel may not be making way.

The difference of light is only in:

	A vessel restricted in her ability to maneuver (Except vessel engaged in mine clearance operations).
	A vessel not under command.
	A vessel engaged in fishing other than trawling.
	A vessel engaged in trawling.

The difference of sound signal is in power driven vessel.