Can the D-level second mate take the C-level second mate directly?

The second officer of class D can directly test the second officer of class C, and there is little difference between the crew of class D and the crew of class C.. Without academic qualifications, allowing experienced D-class crew to transition to C-class after passing the examination can not only alleviate the shortage of C-class crew, but also give D-class crew a way out. Therefore, it is proposed that the senior crew members who have obtained the certificate of competency of Class D before February 1 2002 and meet the requirements of maritime qualifications will be exempted from the requirements of secondary school education when taking the competency examination for the corresponding positions (except captain and chief engineer) of Class C and Class II ships.