# BT-79 Deliver to country subdivision

State, province, or regional subdivision of the delivery address.

## Quick answer

State, province, or regional subdivision of the delivery address.

> **Delivery and payment**: Delivery dates, payment means, and the operational context around settlement.

- validate
- convert

## In plain language

State, province, or regional subdivision of the delivery address.

State, province, or regional subdivision of the delivery address.

Useful when the destination address must distinguish regions, states, or provinces explicitly.

## What you usually enter here

Region or province name

Typical valid values include: Nordrhein-Westfalen, Lombardia

Optional according to EN 16931-1.

## What goes wrong often

Avoid values like: , AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

## Examples in context

Useful when the destination address must distinguish regions, states, or provinces explicitly.

Optional according to EN 16931-1.

## Valid Examples

- Nordrhein-Westfalen
- Lombardia

## Invalid Examples

- AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

## Related Fields

Useful when the destination address must distinguish regions, states, or provinces explicitly.

- [BT-77 Deliver to city](/resources/xrechnung/bt-77-deliver-to-city)
- [BT-78 Deliver to post code](/resources/xrechnung/bt-78-deliver-to-post-code)
- [BT-80 Deliver to country code](/resources/xrechnung/bt-80-deliver-to-country-code)

## XML mapping and field facts

Open the technical reference if you need XML paths, validator rule codes, legal wording, or schema-specific mapping details.

### Field ID:
BT-79

### Data Type:
text

### Cardinality:
0..1

### Requirement:
Optional

### Max Length:
50 characters

### Since Version:
Optional

## XML Implementation

### UBL 2.1 Syntax
```
/Invoice/cac:Delivery/cac:DeliveryLocation/cac:Address/cbc:CountrySubentity
```

### CII (UN/CEFACT) Syntax
```
/CrossIndustryInvoice/SupplyChainTradeTransaction/ApplicableHeaderTradeDelivery/ram:ShipToTradeParty/ram:PostalTradeAddress/ram:CountrySubDivisionName
```

## Why the standard cares about this field

### Business Context
Useful when the destination address must distinguish regions, states, or provinces explicitly.

### Legal Requirement
Optional according to EN 16931-1.

## Official sources and tools

- [KoSIT Validator](https://erechnungsvalidator.service-bw.de/)
- [Invoice Converter](/pdf-to-xrechnung)
- [XRechnung Standard](https://xeinkauf.de/xrechnung/)
- [Test Suite](https://github.com/itplr-kosit/xrechnung-testsuite)