How to Access OmniClass

Learn how to access OmniClass. The Construction Standard provides licensed access to OmniClass through CSI Dynamic Standards — with step-by-step guidance for BIM classification.

How to Access OmniClass

If you're trying to access OmniClass, there's an important step you need to understand: OmniClass is a proprietary standard published and maintained by CSI (the Construction Specifications Institute). There is no free access. Access requires licensing through an authorized channel.

How to Access OmniClass: Step-by-Step

1. Get Licensed Access — The Construction Standard is the authorized licensing authority for OmniClass, designated by CSI. Licensed access includes CSI Dynamic Standards (OmniClass as part of a connected, edition-aware system), the platform (live lookup tool with search, cross-references, and edition tracking), and always-current data that reflects the latest CSI-approved classifications.

2. Access the platform — Once licensed, you access OmniClass through the platform — a web-based tool that provides searchable, browsable OmniClass data with cross-references to MasterFormat and UniFormat.

3. Search and Look Up Data — The platform lets you search by table number, entry code, or classification keyword, browse the full OmniClass hierarchy, see edition history and what changed between editions, and cross-reference to MasterFormat and UniFormat.

Why Access OmniClass the Right Way Matters

Using OmniClass properly — with licensed, current data — matters because:

  • Stale data causes errors — OmniClass is updated regularly by CSI; using outdated classifications causes specification errors, RFIs, and coordination failures
  • Unauthorized use creates legal risk — OmniClass is proprietary intellectual property; using unauthorized copies violates CSI's rights and creates legal liability
  • No cross-references — Licensed access through The Construction Standard includes governed crosswalks between OmniClass and the other CSI standards — something no unauthorized copy provides

Get Started

The Construction Standard provides licensed access to OmniClass through CSI Dynamic Standards. This is how to access OmniClass the right way — with current, authorized, cross-referenced data.

COMMON QUESTIONS
Get licensed access through The Construction Standard. The platform provides authorized OmniClass classifications with cross-references and edition tracking.
No. OmniClass is proprietary — published and maintained by CSI. Free copies are unauthorized and create legal liability. The Construction Standard provides affordable licensed access through CSI Dynamic Standards.
Licensed access through The Construction Standard is the best way to access OmniClass. You get always-current data, edition tracking, cross-references to MasterFormat and UniFormat, and authorized use.

Ready to Get Started?

CSI Dynamic Standards includes MasterFormat, UniFormat, and OmniClass as a connected, edition-aware system. The Construction Standard provides licensed access—built for the speed of your work.

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