> ## Documentation Index
> Fetch the complete documentation index at: https://docs.zwiron.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Tags

> Define tag classifications and tags used to label Catalog assets and align policies.

**Tag classifications** is where you define the taxonomy of labels applied to Catalog tables and columns. A **classification** is a category (for example Sensitivity or PII Type). A **tag** is a label inside that category.

<Note>
  Define the taxonomy here. Apply tags on **Catalog** assets (table peek / profile, or column panels)—not on this page.
</Note>

***

## Open Tag classifications

Tags are not a top-level **Know** sidebar item. Open them one of these ways:

1. **Know → More → All governance** → under **Glossary & policy**, click **Tags** (*Tag classifications and taxonomy*).
2. Command palette: **Governance → Tags**.

Page title: **Tag classifications**. Description: *Organize governance tags into classifications for catalog assets and policies.*

Breadcrumb: **Governance → Tags**.

***

## Classifications (left panel)

The left column heading is **Classifications**.

1. Click the **+** control to open **New Classification**.
2. Enter **Name** (required) and optional **Description**.
3. Click **Create**.

**All tags** lists every tag across classifications. Selecting a classification filters the right panel to that category. Hover a classification and use delete to remove it (confirm in the dialog).

***

## Tags (right panel)

The right panel heading is **All Tags**, or the selected classification name.

1. Click **New Tag**.
2. Enter **Tag Name** (required).
3. Optionally choose **Classification** (or **None**).
4. Optional **Description**.
5. Click **Create**.

Empty state: **No tags** — *Create a tag to classify your data assets.*

Delete a tag from the chip control; the confirm flow reports usage when the tag is still applied.

***

## Example taxonomy

| Classification | Example tags |
| - | - |
| Sensitivity | Public, Internal, Confidential, Restricted |
| Data Domain | Finance, Marketing, Product, Operations |
| PII Type | Name, Email, Phone, SSN, Address |
| Retention | 30-day, 1-year, 7-year, Indefinite |

***

## Apply tags in Catalog

1. Open **Know → Catalog**.
2. Select a table (or column).
3. Use the Tags picker (taxonomy search; optional classification filter).

See [Catalog](/platform/catalog) for asset-level steps.

***

## Related articles

* [Classification](/know/classification) — jobs that propose or apply tags at scale
* [Policies](/know/policies)
* [Catalog](/platform/catalog)
* [Know overview](/know/overview)


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