Industrial Construction, Heavy Civil Construction, Hydraulic Engineering Construction, Power Engineering Construction, Tunnel Construction, Bridge Construction, Highway Construction, Asphalting, Gas Pipeline Construction, Power Line Construction, Water-Supply Construction, Sewage Construction, 03.04. Residential / Commercial and Industrial Buildings, Category 2 (03.04), 03.05. Power Supply (Internal and External Power Supply and Lighting Networks / Power Supply Systems / Photovoltaic and Wind Power Plants), Category 2 (03.05), 03.06. HVAC / Gas Supply, Category 2 (03.06), 03.08. Water Supply and Drainage / Melioration Systems, Category 2 (03.08), 03.09. Transportation Structures and Highways (Roads and Railways / Airports / Bridges / Tunnels / Overpasses / Retaining Walls etc.), Category 1 (03.09)