# CSI Dynamic Standards Documentation

> Documentation for CSI Dynamic Standards, including MasterFormat, UniFormat, and OmniClass classification standards and tools for searching, browsing, Crosswalks, and edition Transitions.

CSI Dynamic Standards provides access to CSI classification standards and tools for working with classifications.

Important terminology:

- **More** provides additional guidance about a selected MasterFormat classification, including available Includes, Does Not Include, Definitions, Notes, See Also, and numbering recommendations.
- **Crosswalks are links between standards and related classifications.** Use them for relationships across MasterFormat, UniFormat, and OmniClass.
- **Transitions support upgrades between editions of a standard.** The current primary workflow is MasterFormat 2020 to MasterFormat 2026.
- Crosswalks and Transitions are not interchangeable.

## Getting started

- [CDS Platform](https://theconstructionstandard.com/docs/index.md): Learn how to search, browse, understand, connect, and update CSI classifications in the CDS Platform.
- [Manage your account and team](https://theconstructionstandard.com/docs/account-management.md): Learn how a company license key gives your organization access to CSI Dynamic Standards and how teammates sign up.
- [Changelog](https://theconstructionstandard.com/docs/changelog.md): See recent improvements to CSI Dynamic Standards search, navigation, document tools, and product design.

## Working with classifications

- [Understand the standards](https://theconstructionstandard.com/docs/classification-systems.md): Learn how MasterFormat, UniFormat, and OmniClass organize construction information and choose the right CSI standard for your task.
- [Search the standards](https://theconstructionstandard.com/docs/searching.md): Learn how to search MasterFormat, UniFormat, and OmniClass by classification number, title, keyword, and other available search options.
- [Browse the classification hierarchy](https://theconstructionstandard.com/docs/navigating-hierarchy.md): Learn how to browse MasterFormat classifications from broad divisions to more specific classifications and view additional classification guidance.
- [See related classifications across CSI standards](https://theconstructionstandard.com/docs/crosswalks.md): Learn how Crosswalks connect related classifications across MasterFormat, UniFormat, and OmniClass.
- [See what changed from MasterFormat 2020 to 2026](https://theconstructionstandard.com/docs/edition-transitions.md): See how Transitions support upgrades from MasterFormat 2020 to MasterFormat 2026 and identify classifications that changed between editions.
- [Save classifications while you work](https://theconstructionstandard.com/docs/clipboard.md): Learn how to save classification numbers and titles, add notes, and copy a collection from CSI Dynamic Standards.

## Tools

- [Division Hierarchies](https://theconstructionstandard.com/docs/division-hierarchies.md): Browse MasterFormat from broad divisions to specific classifications and use More to view Includes, exclusions, definitions, notes, and numbering guidance.
- [Document Transition Assistant](https://theconstructionstandard.com/docs/document-transition-assistant.md): Review MasterFormat 2020 classifications in a PDF and identify available MasterFormat 2026 transitions.
- [Classification Verification](https://theconstructionstandard.com/docs/classification-verification.md): Check MasterFormat references in a PDF against the expected edition and review possible classification problems.

## Learn

- [Video tutorials](https://theconstructionstandard.com/docs/videos.md): Watch concise walkthroughs for searching, browsing, and using CSI Dynamic Standards tools.
- [Guides](https://theconstructionstandard.com/docs/guides.md): Open practical references for understanding and applying MasterFormat in project workflows.

## Support

- [Contact support](https://theconstructionstandard.com/docs/contact.md): Get help with CSI Dynamic Standards access, licensing, account setup, and product workflows.