هيئة قناة السويس
Suez Canal Net Tonnage (SCNT) is derived with a number of modifications from the former net register tonnage of the Moorsom System and was established by the International Commission of Constantinople in its Protocol of 18 December 1873. It is still in use, as amended by the "Rules of Navigation" of the Suez Canal Authority, and is registered in the Suez Canal Tonnage Certificate.