# RequireValidation policy (/programs/policy-vault/require-validation-policy)



`In progress`

RequireValidation returns `RequireValidation` when the required capability is missing, and returns `Deny` when the supplied attestation is expired, revoked, or not issued by an accepted attestor.

| Source             | Path                                                                                                                                                                                             |
| ------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| evaluator          | [`programs/policy-vault/src/policies/require_validation.rs`](https://github.com/agenttrust-labs/agenttrust/blob/main/programs/policy-vault/src/policies/require_validation.rs)                   |
| attestation parser | [`programs/policy-vault/src/ext/validation_registry.rs`](https://github.com/agenttrust-labs/agenttrust/blob/main/programs/policy-vault/src/ext/validation_registry.rs)                           |
| proof              | [`programs/policy-vault/src/proofs/inv_validation_expiry_correct.rs`](https://github.com/agenttrust-labs/agenttrust/blob/main/programs/policy-vault/src/proofs/inv_validation_expiry_correct.rs) |