# password\_reuse\_check\_interval Variable

The `password_reuse_check_interval` system variable is available when the [password\_reuse\_check plugin](password-reuse-check-plugin) is installed. It determines the retention period for the password history in days. Zero, the default, means that passwords are never discarded.

* Command line: `--password_reuse_check_interval=#`
* Scope: Global
* Read-only: No
* Data Type: `numeric`
* Default Value: `0`
* Range: `0` to `36500`

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{% @marketo/form formId="4316" %}
