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

# IPolicyRegistry reference

> Generated B20 reference for IPolicyRegistry functions, events, and errors.

## Functions

| Function                                                                                                                                       | Selector     | Summary                                                                                               |
| ---------------------------------------------------------------------------------------------------------------------------------------------- | ------------ | ----------------------------------------------------------------------------------------------------- |
| [`createPolicy`](/base-chain/specs/upgrades/beryl/b20/specification/reference/interfaces/IPolicyRegistry/createPolicy)                         | `0xe494a1f6` | Creates a new simple policy with no initial members. Permissionless.                                  |
| [`createPolicyWithAccounts`](/base-chain/specs/upgrades/beryl/b20/specification/reference/interfaces/IPolicyRegistry/createPolicyWithAccounts) | `0xffd4931c` | Creates a new simple policy seeded with `accounts` as initial members. Permissionless.                |
| [`createCompositePolicy`](/base-chain/specs/upgrades/beryl/b20/specification/reference/interfaces/IPolicyRegistry/createCompositePolicy)       | `0xc341f3f0` | Creates a new composite policy that combines existing simple policies under a logic                   |
| [`stageUpdateAdmin`](/base-chain/specs/upgrades/beryl/b20/specification/reference/interfaces/IPolicyRegistry/stageUpdateAdmin)                 | `0x1d7ae695` | Stages a proposed new admin for `policyId`. The active admin does not change                          |
| [`finalizeUpdateAdmin`](/base-chain/specs/upgrades/beryl/b20/specification/reference/interfaces/IPolicyRegistry/finalizeUpdateAdmin)           | `0x33031a9c` | Completes a two-step admin transfer. Promotes the caller to active admin and clears the pending slot. |
| [`renounceAdmin`](/base-chain/specs/upgrades/beryl/b20/specification/reference/interfaces/IPolicyRegistry/renounceAdmin)                       | `0xefdb7fa3` | Permanently relinquishes administration of `policyId`. The member set is frozen                       |
| [`updateAllowlist`](/base-chain/specs/upgrades/beryl/b20/specification/reference/interfaces/IPolicyRegistry/updateAllowlist)                   | `0x3388fb5b` | Sets `accounts` membership in an ALLOWLIST policy to `allowed` in one batch.                          |
| [`updateBlocklist`](/base-chain/specs/upgrades/beryl/b20/specification/reference/interfaces/IPolicyRegistry/updateBlocklist)                   | `0x5c4e51b8` | Sets `accounts` membership in a BLOCKLIST policy to `blocked` in one batch.                           |
| [`updateComposite`](/base-chain/specs/upgrades/beryl/b20/specification/reference/interfaces/IPolicyRegistry/updateComposite)                   | `0xbfe142c0` | Replaces a composite policy's child-policy set in full with `childPolicyIds`.                         |
| [`isAuthorized`](/base-chain/specs/upgrades/beryl/b20/specification/reference/interfaces/IPolicyRegistry/isAuthorized)                         | `0x55a1179e` | Returns whether `account` is authorized under `policyId`. Never reverts; unknown                      |
| [`policyExists`](/base-chain/specs/upgrades/beryl/b20/specification/reference/interfaces/IPolicyRegistry/policyExists)                         | `0x330f5637` | Returns whether `policyId` is a built-in sentinel or a previously-assigned custom ID. Never reverts.  |
| [`policyAdmin`](/base-chain/specs/upgrades/beryl/b20/specification/reference/interfaces/IPolicyRegistry/policyAdmin)                           | `0x09dd0a47` | Returns the current admin of `policyId`, or `address(0)` for built-in sentinels,                      |
| [`pendingPolicyAdmin`](/base-chain/specs/upgrades/beryl/b20/specification/reference/interfaces/IPolicyRegistry/pendingPolicyAdmin)             | `0x017548b7` | Returns the currently-staged pending admin for `policyId`, or `address(0)` when                       |
| [`compositePolicyChildIds`](/base-chain/specs/upgrades/beryl/b20/specification/reference/interfaces/IPolicyRegistry/compositePolicyChildIds)   | `0x7c40df74` | Returns the child-policy set of the composite `policyId`.                                             |

## Events

| Event                    | Topic0                                                               | Summary                                                                                   |
| ------------------------ | -------------------------------------------------------------------- | ----------------------------------------------------------------------------------------- |
| `PolicyCreated`          | `0xdc870ce85be577234b8548f42b93f84bbff6d0c1f38ee725c809c49932a13885` | A new policy was created.                                                                 |
| `PolicyAdminStaged`      | `0xdbf3b34a4c956c56ca05cd4b8f9293a4347ad61994445a4b89817d4a19561136` | A new admin was staged. `pendingAdmin == address(0)` clears a prior nomination.           |
| `PolicyAdminUpdated`     | `0x98925cfb1bc09c5b43dd0dd56d3d95aa04fb3300927580cc588c3f5dd58c15e1` | The active admin changed. `newAdmin == address(0)` indicates renunciation;                |
| `AllowlistUpdated`       | `0x18c46532f90187ba11e436e21da087b684801d7f0787f2043f26f079c91e9ef0` | One or more accounts had their ALLOWLIST membership set to `allowed` in a single batch.   |
| `BlocklistUpdated`       | `0x2ff63c102b1b9fd7f5d39f83039c5d6aaf50a414a4f2def2704e41be2628f1e3` | One or more accounts had their BLOCKLIST membership set to `blocked` in a single batch.   |
| `CompositePolicyUpdated` | `0x4ff6adaab31b0df87aa7b8b7320c52b8b3b5eede3bf28a6baaaa8b8b7e1d6363` | A composite policy's child set was set or replaced in full with `childPolicyIds`. Emitted |

## Errors

| Error                         | Selector     | Summary                                                                         |
| ----------------------------- | ------------ | ------------------------------------------------------------------------------- |
| `NonPayable`                  | `0x6fb1b0e9` | ETH was attached to a call targeting a nonpayable policy registry selector.     |
| `Unauthorized`                | `0x82b42900` | Caller is not the admin required by the attempted operation.                    |
| `PolicyNotFound`              | `0x720caa4f` | The referenced policy ID does not exist.                                        |
| `IncompatiblePolicyType`      | `0xf1011ef5` | The operation is incompatible with the policy's type.                           |
| `ZeroAddress`                 | `0xd92e233d` | A required address argument was the zero address.                               |
| `BatchSizeTooLarge`           | `0x083e2f67` | A membership batch exceeded the registry limit.                                 |
| `NoPendingAdmin`              | `0xb4539afa` | `finalizeUpdateAdmin` was called with no pending admin staged.                  |
| `ChildPoliciesOutsideOfRange` | `0xcbdee0f6` | A composite policy was created or updated with a child-policy count outside the |
| `InvalidChildPolicy`          | `0x46508ef6` | Composite policies are not simple policies. Child policies must be existing     |

<CardGroup cols={2}>
  <Card title="Errors & events index" href="/base-chain/specs/upgrades/beryl/b20/specification/reference/errors-and-events-index" />

  <Card title="Constants & addresses" href="/base-chain/specs/upgrades/beryl/b20/specification/reference/constants-and-addresses" />
</CardGroup>