| A - material processing equipment |
| B - equipment for production, transport and distribution of concrete, mortar and rendering mixes |
| C - lifting gear |
| D - equipment for earthmoving and soil compaction |
| E - road construction machinery |
| F - railway track construction equipment |
| F.1 - ballast cleaning machines |
| F.2 - track-laying and/or track renewal trains |
| F.3 - track-tamping machines |
| F.4 - ballast levelling machines, sweeping machines, track stabilizers |
| F.5 - track-laying machines |
| F.6 - locomotives and road/rail machines |
| F.7 - railway wagons |
| F.8 - tools, measuring and testing equipment |
| F.9 - miscellaneous railway construction equipment and devices, rail machining machines |
| F.9.0 - mobile rail machining equipment |
| F.9.1 - measuring vehicles |
| F.9.2 - track cleaning equipment |
| F.9.3 - rail handling and transporting equipment |
| F.9.4 - miscellaneous material handling and transporting equipment |
| F.9.5 - miscellaneous mobile railway construction equipment |
| F.9.51 - rail-mounted truck |
| F.9.52 - multi-purpose track construction equipment |
| F.9.53 - railbus |
| F.9.54 - light track trolley |
| G - floating equipment |
| H - tunnel and mining construction equipment |
| J - pile drivers and extractors, soil injection equipment |
| K - drilling equipment, diaphragm wall equipment |
| L - equipment for pipe jacking and pipeline construction |
| M - equipment and plants for decontamination and environment protection |
| P - transport vehicles |
| Q - air compressors, pneumatic tools |
| R - equipment for power generation, transformation and distribution |
| S - hydraulic cylinders and hydraulic units |
| T - centrifugal and piston pumps, pipelines |
| U - formwork and scaffolds |
| W - workshop machines and equipment |
| X - construction site accomodations, containers |
| Y - equipment for surveying, laboratory, office, communication, monitoring, kitchen |
