43. INLAND ONLY You are meeting «head-on» a tug towing a barge alongside about a mile away. In addition to the white masthead lights which other lights do you see on the tug and tow combined?

Inland Navigation Rule 24 requires a tug towing a barge alongside to display its own masthead lights, sidelights (one green and one red), and a special flashing light. Therefore, from ahead, you would observe the green and red sidelights for both the tug and the barge, along with the special flashing light.