> ## Documentation Index
> Fetch the complete documentation index at: https://base-a060aa97-feat-add-b20-demo.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# IPolicyRegistry.MIN_COMPOSITE_CHILD_POLICIES

> Generated B20 reference for MIN_COMPOSITE_CHILD_POLICIES().

## Signature

```solidity theme={null}
function MIN_COMPOSITE_CHILD_POLICIES() external view returns (uint256);
```

| Field               | Value                            |
| ------------------- | -------------------------------- |
| Selector            | `0xb3ae29f7`                     |
| Canonical signature | `MIN_COMPOSITE_CHILD_POLICIES()` |

## Description

Minimum number of child policies a composite must reference, inclusive. Never reverts.
Return: Minimum permitted child-policy count.

## Access control

Read-only or ERC-20-standard access rules unless the NatSpec states otherwise.

## Policy interaction

This is part of the singleton PolicyRegistry surface used by B20 policy scopes.

## Example

```solidity theme={null}
IPolicyRegistry(target).MIN_COMPOSITE_CHILD_POLICIES();
```

## Related

* [IPolicyRegistry reference](/base-chain/specs/upgrades/beryl/b20/specification/reference/interfaces/IPolicyRegistry)
* [Constants & addresses](/base-chain/specs/upgrades/beryl/b20/specification/reference/constants-and-addresses)