High-Rise Construction, Residential Construction, Commercial Construction, Dwelling House / Mansion Construction, Rebuilding / Remodeling, Industrial Construction, Hydraulic Engineering Construction, Water-Supply Construction, Sewage Construction, Heating Systems Installation, Ventilation Systems Installation, Air-Conditioning Installation, Melioration Systems, Electrical Work / Indoor, Electrical Work / Outdoor, Lighting Systems, Wind Power Plants, Residential Renovation / Finishing, Commercial Building Renovation / Finishing, Industrial / Heavy Civil Facilities Renovation / Finishing, 03.04. Residential / Commercial and Industrial Buildings, Category 1 (03.04), 03.05. Power Supply (Internal and External Power Supply and Lighting Networks / Power Supply Systems / Photovoltaic and Wind Power Plants), Category 1 (03.05), 03.06. HVAC / Gas Supply, Category 1 (03.06), 03.07. Hydraulic Structures, Category 2 (03.07), 03.08. Water Supply and Drainage / Melioration Systems, Category 1 (03.08)

High-Rise Construction, Residential Construction, Commercial Construction, Dwelling House / Mansion Construction, Rebuilding / Remodeling, Industrial Construction, Heavy Civil Construction, Hydraulic Engineering Construction, Power Engineering Construction, Irrigation / Drainage Construction, Greenhouse Construction, Pouring Concrete, Pouring Foundations / Footings, Pouring Concrete Frame Structures, 03.04. Residential / Commercial and Industrial Buildings, Category 1 (03.04), 03.05. Power Supply (Internal and External Power Supply and Lighting Networks / Power Supply Systems / Photovoltaic and Wind Power Plants), Category 3 (03.05), 03.06. HVAC / Gas Supply, Category 3 (03.06)

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)

Hydraulic Engineering Construction, Drilling Works

High-Rise Construction, Residential Construction, Commercial Construction, Dwelling House / Mansion Construction, Rebuilding / Remodeling, Industrial Construction, Heavy Civil Construction, Hydraulic Engineering Construction, Power Engineering Construction, Highway Construction, Asphalting, Water-Supply Construction, Sewage Construction, Industrial / Commercial Modular Construction, Residential Modular Construction, Steel Building Construction, Prefabricated Construction, Earthworks, Demolition, Blasting Works, Heating Systems Installation, Ventilation Systems Installation, Air-Conditioning Installation, Water Supply / Sewage Work - Indoor / Plumbing, Water Supply / Sewage Work - Outdoor, Electrical Work / Indoor, Electrical Work / Outdoor, Lighting Systems, Pouring Concrete, Pouring Foundations / Footings, Pouring Concrete Frame Structures, Metal Work, 03.04. Residential / Commercial and Industrial Buildings, Category 1 (03.04), 03.05. Power Supply (Internal and External Power Supply and Lighting Networks / Power Supply Systems / Photovoltaic and Wind Power Plants), Category 1 (03.05), 03.06. HVAC / Gas Supply, Category 1 (03.06), 03.07. Hydraulic Structures, Category 1 (03.07), 03.08. Water Supply and Drainage / Melioration Systems, Category 1 (03.08), 03.09. Transportation Structures and Highways (Roads and Railways / Airports / Bridges / Tunnels / Overpasses / Retaining Walls etc.), Category 2 (03.09), 03.10. Communication Systems (Telecommunication and Signaling Systems / Transmitters / Receivers / Antennas / Amplifiers), Category 1 (03.10), 04.04. Residential / Commercial and Industrial Buildings, Category 2 (04.04), 04.08. Water Supply and Drainage / Melioration Systems

Industrial Construction, Hydraulic Engineering Construction, Power Engineering Construction, Irrigation / Drainage Construction, Water-Supply Construction, Sewage Construction, Earthworks, Demolition, Drilling Works, Water Supply / Sewage Work - Indoor / Plumbing, Water Supply / Sewage Work - Outdoor, Pumping Station Construction, Water Treatment, Waterproofing, Irrigation Systems, Automatic Irrigation Systems, Fence / Enclosure Construction, Trucks, Tow Trucks / Wreckers, Crane-Manipulators, 03.04. Residential / Commercial and Industrial Buildings, Category 2 (03.04), 03.07. Hydraulic Structures, Category 1 (03.07)