Direct Answer
A BIM Execution Plan (BEP) is a project document that defines how BIM will be used — who delivers what models, at what LOD, on what schedule, in what format, through which CDE. As a steel fabricator, the BEP tells you exactly what BIM deliverables you owe, when they're due, and in what format — essentially the BIM contract requirements for your scope.
Full Explanation
A BEP typically defines: (1) Uses — what BIM will be used for (coordination, shop drawing production, quantity takeoff, as-built documentation). (2) Responsible parties — who delivers the structural model, who delivers MEP, etc. (3) LOD matrix — the required LOD for structural elements at each project milestone. (4) Model exchange schedule — when IFC exports are due. (5) Software and file format requirements. (6) CDE platform and folder structure. (7) Naming conventions for files and model elements. Reading the BEP at project start is essential for understanding your BIM obligations.
What This Means for Your Shop
If the project has a BEP, your detailing contract must specifically address the BEP requirements. Scope gaps between what the BEP requires (LOD 400, IFC 4 export, weekly model updates) and what your detailing contract specifies can lead to disputes or additional cost claims.
Common Mistakes
Not reading the BEP until you're asked to deliver a BIM milestone and discovering that the required LOD or format is different from what you planned. BEP requirements often add cost that must be priced at bid time.
Recommended Process
Request the BEP (or any available draft BEP) at bid time. Review the structural model requirements against your detailing scope. If there's a gap, either include the cost to meet the BEP requirements in your bid or exclude it explicitly in your bid clarifications.