SOA Category OG3
Qualification for major transportation infrastructure: roads, railways, metros, bridges, viaducts, and airport runways
The OG3 category plays a central role in Italy’s public works sector. It is the SOA classification dedicated to mobility infrastructure—roads, highways, rail lines, bridges, and other major civil works that connect regions and communities. These projects not only support the daily movement of people and goods but also serve as an economic backbone for the country. Obtaining OG3 certification requires strong technical and organizational capabilities, adequate equipment, and proven experience on comparable works. Costs vary according to the classification level requested.
Scope of work covered by OG3: roads, bridges and railways
OG3 includes the construction, maintenance, and upgrading of roads, highways, bridges, viaducts, and transport-related civil works. It covers:
- Roads and highways: construction of new corridors or expansion of existing routes (e.g., bypasses, expressways).
- Bridges and viaducts: construction, reconstruction, and structural reinforcement, including seismic retrofits.
- Railways and metro systems: new lines or urban extensions (e.g., Milan’s M4 metro).
- Airport runways and airside areas: construction or expansion of runways, aprons, and special pavement systems with signaling installations.
- Maintenance and retrofit works: resurfacing, safety-barrier installation, and structural monitoring systems.
In short: OG3 is the category for transportation infrastructure – essential for roads, railways, and airports. Holding it means operating in one of Italy’s most strategic, high‑impact sectors.
Complementary categories that integrate with OG3
- OG4 – Underground works: required when the alignment includes tunnels or underground structures. Large highway or rail projects (e.g., Apennine motorways, high‑speed rail) typically require OG3 for surface works and OG4 for tunneling.
- Road‑related specialist categories:
- OS9 lighting, traffic signaling, and safety systems;
- OS10 vertical and horizontal road signage;
- OS12-A road safety barriers (guard rails, crash attenuators).
- Structural and systems categories:
- OS21 consolidation works, deep foundations, slope stabilization;
- OS30 electrical installations and lighting for tunnels or service areas.
- Environmental and landscaping categories:
- OS12-B rockfall and snow barriers in mountain zones;
- OS24 landscaping and roadside urban design;
- OS34 noise‑reduction barriers;
- OG8 river and hydraulic works needed for diversions or protective structures.
OS20 (geognostic investigations) and OS19 (telecommunications/ITS systems) also integrate into complex OG3 projects such as highways or high‑speed rail lines.
FAQ
SOA Category OG3
OG3 is the backbone of Italy’s transportation infrastructure. Without OG3‑qualified contractors, the country would not have safe roads, durable bridges, or modern railway systems. For construction companies, obtaining SOA OG3 certification opens access to a high‑value market while taking on the responsibility of delivering infrastructure essential for Italy’s future..
Interested in expanding your SOA qualification with OG3 or learning how to participate in major infrastructure tenders? Contact us today. Our team of SOA and public‑procurement specialists is ready to assist you at every step – don’t miss the opportunity to grow your business in the large‑scale public works sector.
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