# Author a Minimization Policy

1. Determine your policy scope:
   * [**Global policy**](https://documentation.immuta.com/2024.3/secure-your-data/authoring-policies-in-secure/policies-explained): Click the **Policies page** icon in the left sidebar and select the **Data Policies** tab. Click **Add Policy** and enter a **name** for your policy.
   * [**Local policy**](https://documentation.immuta.com/2024.3/secure-your-data/authoring-policies-in-secure/policies-explained): Navigate to a specific data source and click the **Policies** tab. Scroll to the **Data Policies** section and click **Add Policy**.
2. Select **Minimize data source** from the first dropdown.
3. Complete the **enter percentage** field to limit the amount of data returned at query-time.
4. Select **for everyone except** from the next dropdown menu to continue the condition. *Additional options include for everyone and for everyone who*.
5. 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 in the far right of the Policy Builder 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.*
6. Opt to complete the **Enter Rationale for Policy (Optional)**, and then click **Add**.
7. For global policies: 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.
8. Click **Create Policy**. If creating a global policy, you then need to click **Activate Policy** or **Stage Policy**.