When both side lights you see ahead
Give her right rudder & show your red
Green to green red to red
Perfect safety go ahead
If to starboard red appears
It is your duty to keep clear
To act as judgment says is proper
Port or starboard
Back her stop her
But if upon your port is seen
A steamers starboard light of green
There's not much for you to do
For green to port keeps clear of you
Both in safety and in doubt
Always keep a sharp lookout
In danger with no room to turn
Ease her - stop her - go astern