# How-to Guides

- [Author a Masking Data Policy](/2024.3/secure-your-data/authoring-policies-in-secure/data-policies/how-to-guides/data-policy-tutorial.md)
- [Author a Minimization Policy](/2024.3/secure-your-data/authoring-policies-in-secure/data-policies/how-to-guides/minimization-tutorial.md)
- [Author a Purpose-Based Restriction Policy](/2024.3/secure-your-data/authoring-policies-in-secure/data-policies/how-to-guides/purpose-tutorial.md)
- [Author a Restricted Data Policy](/2024.3/secure-your-data/authoring-policies-in-secure/data-policies/how-to-guides/restricted-data-policies.md)
- [Author a Row-Level Policy](/2024.3/secure-your-data/authoring-policies-in-secure/data-policies/how-to-guides/row-redaction-tutorial.md)
- [Author a Time-Based Restriction Policy](/2024.3/secure-your-data/authoring-policies-in-secure/data-policies/how-to-guides/time-based-tutorial.md)
- [Certifications Exemptions and Diffs](/2024.3/secure-your-data/authoring-policies-in-secure/data-policies/how-to-guides/manage-policies-per-data-source.md)
- [External Masking Interface](/2024.3/secure-your-data/authoring-policies-in-secure/data-policies/how-to-guides/external-masking-interface.md)