# `Twilio.Numbers.V2.RegulatoryCompliance.RegulationService`
[🔗](https://github.com/jeffhuen/twilio_elixir/blob/main/lib/twilio/numbers/v2/regulatory_compliance/regulation_service.ex#L2)

Service for Regulation API operations.

Operations: `list`, `fetch`

# `fetch`

```elixir
@spec fetch(Twilio.Client.t(), String.t(), keyword()) ::
  {:ok, Twilio.Resources.Numbers.V2.RegulatoryCompliance.Regulation.t()}
  | {:ok, map(), map()}
  | :ok
  | {:error, Twilio.Error.t()}
```

Fetch specific Regulation Instance.

Operation: `FetchRegulation` | Tags: NumbersV2Regulation

## Query Parameters

| Parameter | Type | Description |
|-----------|------|-------------|
# credo:disable-for-next-line Credo.Check.Readability.MaxLineLength
| `IncludeConstraints` | boolean | A boolean parameter indicating whether to include constraints or not for supporting end user, documents and their fields |

# `list`

```elixir
@spec list(Twilio.Client.t(), map(), keyword()) ::
  {:ok, Twilio.Page.t()}
  | {:ok, map(), map()}
  | :ok
  | {:error, Twilio.Error.t()}
```

Retrieve a list of all Regulations.

Operation: `ListRegulation` | Tags: NumbersV2Regulation

## Query Parameters

| Parameter | Type | Description |
|-----------|------|-------------|
| `EndUserType` | string | The type of End User the regulation requires - can be `individual` or `business`. |
| `IsoCountry` | string | The ISO country code of the phone number's country. |
| `NumberType` | string | The type of phone number that the regulatory requiremnt is restricting. |
# credo:disable-for-next-line Credo.Check.Readability.MaxLineLength
| `IncludeConstraints` | boolean | A boolean parameter indicating whether to include constraints or not for supporting end user, documents and their fields |

# `stream`

```elixir
@spec stream(Twilio.Client.t(), map(), keyword()) :: Enumerable.t()
```

Stream: Retrieve a list of all Regulations. (lazy auto-pagination).

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*Consult [api-reference.md](api-reference.md) for complete listing*