Civil engineering and building

If the description of the activity is "civil engineering" and it is impossible to determine the main activity between:

In the whole 42 division
• 421100: construction of roads and motorways
• 421200: construction of railways and underground railways
• 421300: construction of bridges and tunnels
• 422100: construction of utility projects for fluids
• 422200: construction of utility projects for electricity and telecommunications
• 429100: construction of water projects
• 429900: construction of other civil engineering projects n.e.c.

Code under 429900 (= construction of other civil engineering projects n.e.c.)

If construction if construction in the field of:
• Construction: code under 412001
• Building construction and civil engineering : code under 412003
• Civil engineering: code under 42… according to type of work

If repairs in the field of:
• Construction: code under 412004
• Building construction and civil engineering : code under 412004
• Civil engineering: code under 42… according to type of work