Building and civil engineering operations are classified into three categories:
1° First category: operations subject to the obligation to set up an inter-company college for safety, health and working conditions;
2° Second category: operations subject to the obligation of prior declaration provided for in article L. 4532-1 that do not come under the first category;
3° Third category: operations subject to the obligation to draw up a simplified general coordination plan in application of articles R. 4532-52 and R. 4532-54 and other operations that do not come under the first and second categories.