---
title: region
framework: usernotifications
role: symbol
role_heading: Instance Property
path: usernotifications/unlocationnotificationtrigger/region
---

# region

The region used to determine when the system sends the notification.

## Declaration

```swift
@NSCopying var region: CLRegion { get }
```

## Discussion

Discussion Use the notifyOnEntry and notifyOnExit properties of this region to specify whether the system sends notifications when the user enters or exits the specified geographic area.