On the 1st of July 2022, Statsbygg published their new BIM requirements for their projects.
ย
This set of requirements is called SIMBA and the latest version is SIMBA 2.1.
This is based on the previous version released one year earlier, SIMBA 2.0.
Before I go on with this, let me briefly describe who Statsbygg is.
Statsbygg is the Norwegian governmentโs building commissioner, property manager, and developer.
Statsbygg also advises the government in construction and property affairs.
I will leave it at that, for now.
Here are 2 reasons why I dare to say these might be the most ambitious requirements in the world at the moment.
Not for one project, but for all projects of a public client.
I) Designers shall use authoring tools capable of delivering according to Statsbygg's requirements. The authoring tool shall be efficient for the drafting and design including establishing, maintenance and changing information.
Additionally, it shall be efficient for collaboration with all other project participants of information on both open (IFC) and proprietary formats. The potential lead appointed party, shall as part of the tender response inform Statsbygg of their intended used authoring tools.
The authoring used in the project shall be agreed as part of the establishment of the BIM execution plan.
Use of authoring tools that does not support delivering according to Statsbygg's requirements can be rejected by Statsbygg and shall not be utilized in the project.
Lack of or inefficient functionality in the appointed party's selected authoring tool is not a legitimate cause for not delivering according to Statsbygg's requirements or for seeking additional compensation for delivering according to the agreed requirements.
II) SIMBA 2.1 requires model deliveries on the open format Industry Foundation Classes (IFC), version IFC4.0.2.1, IFC4 ADD2 TC1, here after called IFC4. Unless otherwise agreed, the following applies:
1. The project shall exchange models within the disciplines on IFC4 to ensure no participants are excluded. 2. Authoring tools shall be certified by buildingSMART International for IFC4 export.
Also, unless otherwise agreed, and by approval of the project and Statsbygg the project can: 3. Use authoring tools not certified for IFC4 export if it can export to IFC4. The appointed party is responsible for correct IFC4 export. 4. Use later versions of IFC than IFC4.
5. If delivery on IFC4 is not possible, use IFC2x3 for model exchange within the project. The information requirements in SIMBA 2.1 still applies.
The project shall find a way to secure automatic model check of IFC2x3 models according to the IFC4 requirements set from BIMQ. Note that at handover only IFC4 is accepted.
Description is your guiding star ๐. It provides the rationale, the 'why' behind a specific requirement. For example, it explains why walls should have fire ratings.