Mark the events and properties your team trusts as *official* to show that they're vetted, authoritative, and safe to use in analyses. Official designations help analysts and product managers build charts on reliable data, and Amplitude's AI agents favor official events and properties when they answer questions. Tracking-plan owners and data governors manage these designations as part of taxonomy maintenance.

Use official designations for the events and properties in your tracking plan. To endorse reusable analysis objects like metrics, custom events, cohorts, and segments instead, use [Object management](/docs/data/object-management).

## How official designations work

An official event or property is one a tracking-plan owner reviewed and endorsed as a source of truth. Marking an item official doesn't change the underlying data or how Amplitude ingests it. Instead, it adds a trust signal across Amplitude:

- Event and property selectors show an **Official** filter, so you can narrow long lists to endorsed items.
- Amplitude's AI agents weigh official events and properties more heavily when they choose data for an answer.

## Mark an event or property as official

Changing an event or property's official status requires the *Manage tracking plans* permission. Members without it can view which items are official but can't change the designation.

1. In Amplitude Data, go to *Events* or *Properties*.
2. Click the event or property name to open its details panel.
3. Click the **Official** control to mark the item official. Click it again to remove the designation.

To update several items at once, select them in the *Events* or *Properties* table, then set their official status from the menu at the top of the table.

## Find official events and properties

- In a chart's event or property selector, apply the **Official** filter to choose only endorsed items.
- In Amplitude Data, filter the *Events* or *Properties* table by official status to review which items your team endorsed.

{% callout type="note" heading="" %}
Marking an event or property official is a trust signal only. It doesn't block, hide, or transform data. To control which data Amplitude ingests, use blocking and [transformations](/docs/data/transformations).
{% /callout %}