1, CAD skill level 1 (those who meet one of the following conditions can declare this level): reach the recommended training time of this skill level 1; Engaged in CAD two-dimensional drawing for more than 2 years; Those who have obtained the intermediate vocational certificate of cartographer.

2.CAD skill level 2 (those who meet one of the following conditions can apply for this level): the training time recommended by this skill level 2; Engaged in three-dimensional geometric modeling of industrial products or civil building objects for more than 2 years; Those who have obtained the first-level examination certificate of this skill.

3.CAD skill level 3 (those who meet one of the following conditions can apply for this level): the training time recommended by this skill level 3; Engaged in three-dimensional geometric modeling of industrial products or civil building objects for more than 2 years; Those who have obtained the qualification certificate of this skill level 2 examination.