Contracting authorities · Art. 43 and Annex I.9, Legislative Decree 36/2023
BIM support for contracting authorities
Every duty, at the right moment.
Since 1 January 2025, art. 43 of Italy's Legislative Decree 36/2023 requires digital information management for new works and interventions on existing buildings above €2 million of works. We support the RUP (the single project manager) and the support team at every step: from the Annex I.9 preliminary measures to final acceptance with as-built models.
- mandate in force
- 1 January 2025
- mandate in force
- works threshold, net of VAT
- €2,000,000
- works threshold, net of VAT
- heritage buildings, from 2026
- €5,404,000
- heritage buildings, from 2026
- CDE manager, BIM manager, coordinator
- 3 roles
- CDE manager, BIM manager, coordinator
Timeline of duties
What the contracting authority must do, and when
Enter the amount and type of intervention: the timeline shows the Annex I.9 duties phase by phase, and what we can do at each one.
€3,500,000
Type of intervention
Threshold: €2,000,000
BIM mandatory
The works cost exceeds the threshold: art. 43(1) applies.
Threshold: €2,000,000
BIM mandatory
The works cost exceeds the threshold: art. 43(1) applies.
- 1
Once, at organisation level
Before any BIM procedure
- Always, before adopting BIMAll. I.9 art. 1 c.2 a
Staff training plan, by role
What we do: We build it around the authority's roles and deliver the courses.
BIM training → - Always, before adopting BIMAll. I.9 art. 1 c.2 b
Hardware and software acquisition and maintenance plan
What we do: We review existing tools and needs per role.
- Always, before adopting BIMAll. I.9 art. 1 c.2 c
Organisational act
What we do: We draft it with you: roles, responsibilities, flows, standards, aligned with the quality system.
- Always, before adopting BIMAll. I.9 art. 1 c.3
Appointment of a CDE manager and at least one BIM manager
What we do: If the roles are not available in-house, we cover them as an outsourced service.
Outsourced BIM manager → - Always, before adopting BIMAll. I.9 art. 1 c.4-5
The authority's own common data environment (CDE)
What we do: We write the rules, help choose the platform and configure it.
CDE manager →
- 2
For each intervention
Programming and design brief
- Mandatory for this interventionAll. I.9 art. 1 c.3
Information-flow coordinator (BIM coordinator) in the RUP's support team
What we do: We take on the role for the project; decisions stay with the authority.
- Mandatory for this interventionAll. I.9 art. 1 c.2-bis
Information requirements derived from objectives
What we do: We turn the project goals into model uses and levels of information need.
- Mandatory for this interventionArt. 41 c.3 · DIP
EIR as part of the design brief (DIP)
What we do: We draft the EIR with the RUP.
Information requirements (EIR) →
- 3
Documents and evaluation
Tender
- Mandatory for this interventionAll. I.9 art. 1 c.8 / c.9
EIR attached to the tender documents
What we do: We align it with the design level put out to tender.
Information requirements (EIR) → - Mandatory for this interventionAll. I.9 art. 1 c.10 b
Evaluation of the information management proposal (oGI)
What we do: We prepare evaluation grids and support the panel on technical content.
- Mandatory for this interventionAll. I.9 art. 1 c.12
Optional award criteria
What we do: We propose measurable criteria tied to the required model uses.
- 4
Before and during execution
Contract and design
- Mandatory for this interventionAll. I.9 art. 1 c.10 c
The winner's BIM execution plan (pGI)
What we do: We check it against the EIR and the bid before approval.
- Mandatory for this interventionAll. I.9 art. 1 c.10 d
Deliveries through the authority's CDE
What we do: We manage states, approvals and delivery deadlines.
CDE manager → - Mandatory for this interventionAll. I.9 art. 1 c.10 f · art. 42
Design verification with BIM methods
What we do: We check models with rules and reports, issues tracked in BCF.
BIM Validation →
- 5
Site and handover
Construction and acceptance
- Mandatory for this interventionAll. I.9 art. 1 c.11
Information-flow coordinator in the works direction office, where needed
What we do: We support the works direction in using models on site.
- Mandatory for this interventionAll. I.9 art. 1 c.11
As-built models and the specialist modelling report at acceptance
What we do: We check that the as-built model is usable for operating the asset.
Digital twin →
Support is external, decisions stay with the authority
Annex I.9 says the roles should preferably be in-house, with documented skills, and allows them to be outsourced when the authority does not have them. The Ministry of Infrastructure guidelines of 20 February 2026 state that the information-flow coordinator can be external, while decision-making power stays with the contracting authority.
That is why we work inside the RUP's support team: we prepare, check and write the technical documents. Signatures and decisions stay with you. Meanwhile we train your staff, so that external support can shrink over time.
Frequently asked questions
What is the BIM mandate threshold in 2026?+
€2 million of estimated works cost, net of VAT, for new works and interventions on existing buildings. Only the works amount counts, not the whole project budget, and the mandate applies only above the threshold. For heritage buildings protected under art. 10(1) of Legislative Decree 42/2004 the EU works threshold applies: €5,404,000 from 1 January 2026.
Can the information-flow coordinator be external?+
Yes. Annex I.9 prefers in-house staff with documented skills and, where none are available, allows the functions to be outsourced under the Code. The Ministry guidelines of 20 February 2026 confirm that the coordinator can be external, but decision-making power stays with the contracting authority.
Are the preliminary measures needed even when BIM is not mandatory?+
Yes. The training plan, the hardware and software plan and the organisational act must be adopted before any BIM procedure, regardless of amount and design stage. Without them the authority cannot adopt BIM voluntarily.
Is extraordinary maintenance subject to the BIM mandate?+
No, unless it concerns an asset already delivered with BIM methods: then the threshold applies. The line between extraordinary maintenance and renovation follows art. 3 of Presidential Decree 380/2001 for buildings; borderline cases need checking one by one.
Where does the EIR (capitolato informativo) fit?+
It is part of the design brief (art. 41(3)) and is attached to the tender documents: for design services under Annex I.9 paragraph 8, for works with an executive design or design-and-build under paragraph 9, consistent with the design level put out to tender.
BIM consulting for the Italian market
- BIM consultingDigital, at the service of those who build.→
- Outsourced BIM managerRoles covered. Decisions that stay yours.→
- Information requirements (EIR)Requirements written first. Useful models later.→
- BIM trainingSkills by role, on your own projects.→
- Digital twinThe model that keeps working after handover.→
- CDE managerEvery file in its state. Every step with a name.→
Do you have a tender coming up?
Tell us the amount, type of intervention and timing. A BIMON engineer will reply within one working day with the steps that apply to you.