License MasterFormat®, UniFormat®,
and OmniClass®
Delivered together as CSI Dynamic Standards℠
The official digital edition—no more standalone PDFs or books—always current and edition-aligned, so models, drawings, specs, bids, and handover stay in lockstep with fewer RFIs and less rework.
Specifiers, architects, engineers, contractors, owners, facility managers—and the software they use—rely on us every day.
MasterFormat®, UniFormat®,
and OmniClass®
Now Delivered as a Live Digital Edition
CSI Dynamic Standards℠ replaces static books and PDFs with an always-updated, connected edition in the Navigator interface—searchable, cross-referenced, and updated by CSI with versioning you can see.
MasterFormat
The live backbone for specs and work results—consensus-based numbers and titles kept current, cross-linked to UniFormat and OmniClass, and ready for pre-issue checks via integrations through enterprise solutions so mislabels and rework don't cascade.
UniFormat
Early-phase structure for elements, systems, and assemblies that carries design intent and budgets forward; governed crosswalks reveal the right MasterFormat sections as projects move from SD to DD to CD—without manual remapping.
OmniClass
Lifecycle classification you can compute on—tag models, submittals, and assets so closeout is owner-ready and FM systems ingest data cleanly, keeping design, construction, and operations aligned.
License Requirements
by Industry
Specifiers
If you author, maintain, or use specifications, templates, models, or schedules that include CSI numbers, titles, or classifications—inside your firm or in client deliverables—your organization needs a license for CSI Dynamic Standards. This applies to independent specification writers and in-house specifiers at AECO firms.
Use CSI Dynamic Standards if you/your team:
Write project manuals or outline specs using MasterFormat numbers and titles
Maintain and issue office master sections/templates that embed MasterFormat numbers and titles on client work
Produce section schedules/TOCs, keynote tables, or submittal logs that reference MasterFormat sections and share them with project partners
Map early-phase UniFormat elements to MasterFormat sections and distribute those mappings externally
Deliver BIM data or exports tagged to OmniClass and UniFormat for coordination, bidding, or owner handover
The Authorized Licensing Authority for
The Authorized Licensing Authority for MasterFormat®, UniFormat®, and OmniClass®
MasterFormat, UniFormat, and OmniClass
Designated by CSI as its standards licensor, The Construction Standard turns the industry's essential classifications from static references into living infrastructure teams can design in, price in, build in, and operate in. CSI created and maintains the standards; The Construction Standard licenses and delivers them in practical, project-ready ways that remove friction for AECO teams.
Our mission is simple and transformational: ensure every handoff—from concept to closeout—carries the same consistent meaning, so projects move faster with fewer RFIs, cleaner bids, and steadier schedules. MasterFormat, UniFormat, and OmniClass remain independent CSI classification standards; CSI Dynamic Standards delivers the authorized, approved releases. In short, we don't just reference standards—we make them usable at the speed of your work.
Using CSI Classification Standards Requires a License
Using CSI Classification Standards
Requires a License
If you use the MasterFormat, UniFormat, or OmniClass classification standards in deliverables, templates, content libraries, products, or platforms—and others rely on those classification standards and their numbers and titles to organize, navigate, compare, or exchange information—you need to obtain a license in the applicable standard. CSI Dynamic Standards gives you authorized, version-aware access so teams stay aligned without edition ambiguity.
Design & Standards
- Design Standards / Guidelines
- Master Guide Specifications
- Project Specifications
Templates & Classifications
- Internal templates or divisions arranged by CSI codes
- BIM libraries, models, or data structured using CSI classifications
Digital Tools & Platforms
- Software using CSI codes for organization or automation
- Search, filter, or classification features powered by CSI
Content Sharing & Reuse
- Redistribution internally or externally
- Use within manuals, templates, or workflows
Distribution & Documentation
- Documents distributed on public or private websites
- Technical documentation using CSI numbering
Specifications
- Master Guide Specifications
- Project Specifications
Why Now?
Construction productivity hasn't changed in decades while demand, complexity, and risk have all climbed. Industry leaders call for digitized, interoperable workflows that reduce rework, connect disciplines, and keep everyone working from the same, consensus-based source of truth. We exist to deliver exactly that: CSI Dynamic Standards are continuously updated standards, delivered in forms that keep editions clear, changes visible, and handoffs aligned across the lifecycle.
Standards
are leverage.
You can't industrialize construction or scale AI without consistent, computable categories every team shares. That's the work: reducing transaction costs across thousands of handoffs. Modern delivery is multidisciplinary—owner outcomes depend on design, trade, and operations data lining up.
License & legitimize.
As the Construction Specification Institute's designated licensor for MasterFormat®, UniFormat™, and OmniClass®, we ensure your teams and products work with authorized, edition-true numbers, titles, and classifications—delivered in practical, project-ready ways. (CSI stewards and governs the standards; we license and deliver them.)
Deliver for real
workflows.
Through CSI Dynamic Standards, we provide standards in human-readable and system-readable forms so numbers, titles, classifications and intent stay consistent from concept through facility operations—inside the tools you already use.
Keep editions clear.
Teams always know which edition applies, what changed, and where those changes matter—protecting decisions, bids, and schedules.
Bridge the ecosystem.
Designers, specifiers, engineers, contractors, owners/FM, and software platforms all work from the same consensus-based numbers, titles, and classifications—cutting friction and rework across the value chain.
MasterProduct
Sign Up to Receive Updates
MasterProduct℠ sets the future as its baseline: a neutral, industry-scale building product catalog linking 12M+ products to MasterFormat, UniFormat, and OmniClass via 2,700 normalized attributes. It's a seismic shift from guesswork to standards-true decisions—fast search, real comparisons, and selections that drop straight into your BIM, specifications, procurement, and turnover. No pay-for-play—ever.
Products
+12M
Attributes