# Criteria for requesting notification

The `criteria` object specifies the type of notification and a minimum time that the notification can complete.

The `criteria` object has two main properties: `Type` and `Filter`. These are described in the following table.

Table: Criteria object properties
Property | Description | Type | Value
--- | --- | --- | ---
`criteria.Type` | Specifies the type of content. | string | Possible values: `"Log"`
`criteria.Filter` | Specifies the time between notifications of changes to the log event database. | object | Object with the properties specified below
`criteria.Filter.DelayTime` | The time in microseconds. | number |