Q.What all mandatory markings are required on the ship's hull?

Name of the ship ( port and Stbd bow and Transom)

IMO number and Port of Registry at Transom

Boundary of Bunker oil tanks marked on the hull ( no pushing allowed in these area)

LOAD LINES both sides

Draft marks FWD AFT MIDSHIP - Both sides

TUG Pushing Area - Clearly masked as TUG

Bulbous bow mark

Location of cargo manifold ,bunker manifold, vapour manifold and name of manifold ( DO, FO, NO 1 ,2, ...)

Overboard discharge opening with name

Sea Chest.

Bow thruster marking.

Propeller warning marking.

I remember only this much.