---
title: "UK CPR Part 31 + PD 57AD — Disclosure & the Disclosure Certificate — KYE Protocol™ coverage"
description: "UK CPR Part 31 + PD 57AD — Disclosure & the Disclosure Certificate coverage by KYE Protocol™ — every requirement bijection-mapped to the KYE™ artefact that enforces it."
url: https://kyeprotocol.com/compliance/uk-cpr-pd57ad/
lang: en
source: "KYE Protocol"
---

> UK CPR Part 31 + PD 57AD — Disclosure & the Disclosure Certificate coverage by KYE Protocol™ — every requirement bijection-mapped to the KYE™ artefact that enforces it.

UK CPR Part 31 + PD 57AD — Disclosure & the Disclosure Certificate

# UK CPR Part 31 + PD 57AD — Disclosure & the Disclosure Certificate — 100% of in-scope requirements covered.

3 requirements · 2 in scope (2 enforced) · 1 out-of-scope (outside KYE™’s authority layer). The 100% is weighted over the in-scope base.

**Source:** The Civil Procedure Rules Part 31 and Practice Direction 57AD govern disclosure in English civil litigation (PD 57AD applying in the Business and Property Courts). They require parties to undertake a reasonable and proportionate search, to certify disclosure through a signed Disclosure Certificate, and to preserve documents — with the disclosing party's legal representatives responsible for the process. KYE Protocol™ governs whether an AI-assisted disclosure determination may PROCEED to a consequential litigation action — under a named responsible legal representative's authority, with chain-of-custody recorded, with a signed Evidence Pack™, and a contestability record so a disclosure challenge can be reconstructed. KYE™ does not conduct the legal review or judge whether disclosure is substantively adequate. · **License:** The Civil Procedure Rules and Practice Directions are UK Crown copyright, reproduced under the Open Government Licence for mapping purposes; KYE™ registry paraphrases each requirement's intent and cites the official identifier.

## By category

| Category | Reqs | Enforced | Designed | Advisory | Deferred | Coverage |
| --- | --- | --- | --- | --- | --- | --- |
| Named-authority on the disclosure determination & certificate | 1 | 1 | 0 | 0 | 0 | **100%** |
| Contestability & reconstruction of a disclosure challenge | 1 | 1 | 0 | 0 | 0 | **100%** |
| Substantive disclosure review & adequacy judgment | 1 | 0 | 0 | 0 | 0 | **0%** |

## Every requirement → the KYE™ artefact that enforces it

| ID | Title | Status | KYE™ enforcement |
| --- | --- | --- | --- |
| `uk-cpr-pd57ad.disclosure-certificate` | An AI-assisted disclosure determination proceeds only under a recorded named-authority decision | enforced | **audit\_events**: `kye.purpose.request.v1`, `kye.purpose.admissibility.v1`, `kye.evidence.decision_map.v1` **engines**: `internal`, `internal` **rule\_packs**: `kye:rule-pack:litigation-evidence-discovery` **dictionaries**: `internal` **constitution\_refs**: `constitution/12-PURPOSE-PERMISSION.md` |
| `uk-cpr-pd57ad.disclosure-challenge-reconstruction` | Contestability & reconstruction of an AI-assisted disclosure determination when challenged | enforced | **audit\_events**: `kye.evidence.pack.v1`, `kye.replay.context_seal.v1`, `kye.replay.proof.v1` **engines**: `internal`, `internal` **rule\_packs**: `kye:rule-pack:litigation-evidence-discovery` **constitution\_refs**: `constitution/13-RESILIENCE-LOOP.md`, `constitution/21-DELEGATED-AUDITABILITY.md` |
| `uk-cpr-pd57ad.substantive-disclosure-review` | Substantive disclosure review on the merits and the adequacy / proportionality judgment | out-of-scope | _(no enforcement cited)_ |

Canonical KYE™ surfaces referenced on this page: [Evidence Pack™](https://kyeprotocol.com/evidence-pack/) · [KYE Protocol™](https://kyeprotocol.com/).