# Author a Minimization Policy

## Permissions

`GOVERNANCE` Immuta permission or `Manage Policies` domain permission

## Build the policy

1. Click the <i class="fa-shield">:shield:</i> **Policies** icon in the navigation menu and select the **Data Policies** tab. Click **New data policy** and complete the **Policy name** field.
2. Select **Protect** as the policy type.
3. Select **Minimize data source** from the first dropdown.
4. Complete the **enter percentage** field to limit the amount of data returned at query-time.
5. Select **for everyone except** from the next dropdown menu to continue the condition. *Additional options include for everyone and for everyone who*.
6. Use the next field to choose the **attribute**, **group**, or **purpose** that you will match values against.

   *Notes:*

   * *If you choose for everyone who as a condition, complete the Otherwise clause before continuing to the next step.*
   * *You can add more than one condition by selecting **+ Add Another Condition**. The dropdown menu then contains conjunctions for your policy. If you select **or**, only one of your conditions must apply to a user for them to see the data. If you select **and**, all of the conditions must apply.*
7. <i class="fa-sparkles">:sparkles:</i> [**AI-powered feature**](/saas/configuration/application-configuration/reference-guides/immuta-ai-faq/immutas-ai-features.md)**:** Click **Explain this policy** to open the AI assistant side sheet. The [AI assistant](/saas/govern/secure-your-data/authoring-policies-in-secure/data-policies/reference-guides/data-policies.md#ai-assistant) will generate a textual summary and explanation of the policy behavior on various users using mock data.
8. Opt to complete the **Enter Rationale for Policy (Optional)**, and then click **Add**.
9. Click the dropdown menu beneath **Where should this policy be applied**, and select **On all data sources**, **On data sources**, or **When selected by data owners**. If you select **On data sources**, finish the condition in one of the following ways:
   * **tagged**: Select this option and then search for **tags** in the subsequent dropdown menu.
   * **with columns tagged**: Select this option and then search for **tags** in the subsequent dropdown menu.
   * **with column names spelled like**: Select this option, and then enter a **regex** and choose a **modifier** in the subsequent fields.
   * **in server**: Select this option and then choose a **server** from the subsequent dropdown menu to apply the policy to data sources that share this connection string.
   * **created between**: Select this option and then choose a **start date** and an **end date** in the subsequent dropdown menus.
10. Click **Activate Policy** or **Stage Policy**.


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# Agent Instructions: Querying This Documentation

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```

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