# Container size

Source: https://developer.avalara.com/avatax-for-bevalc/requirements/container-size/

# Container size

**Element type: Required**

**Endpoints used:** [TransactionParameterModel](https://developer.avalara.com/api-reference/avatax/rest/v2/models/TransactionParameterModel/), [TransactionLineParameterModel](https://developer.avalara.com/api-reference/avatax/rest/v2/models/TransactionLineParameterModel/)

Many jurisdictions have limits on the volume of alcohol that can be purchased in a transaction. The`ContainerSize` parameter is used to describe the volume of a single container. When specifying the container size, you must also include a`unit` with one of the following options:

-   `Litre`
-   `Millilitre`
-   `gallon (US fluid)`
-   `quart (US fluid)`
-   `ounce (fluid US customary)`

```
"lines": [  {    "parameters":[      {        "name":"ContainerSize",        "value":"750",        "unit":"Millilitre"      }    ]  }]
```

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