Is it necessary for the D-class chief engineer to take the C-class second aviation chief engineer without a diploma?

These Provisions are aimed at the senior crew members who have obtained the Class D certificate of competency before February 1 2002 and meet the requirements of maritime qualifications, and cancel the technical secondary school education requirements when taking the competency examination for the corresponding positions of Class C and Class II ships (except the captain and chief engineer); However, the above-mentioned crew members may not apply for a Class C first-class certificate of competency, and they can only apply for the positions of top mate and chief engineer when applying for a Class C second-class certificate of competency.