---
title: "Appendix A to AMC1 21L.A.24(b) Means-of-compliance codes — Annex Ib, Initial Airworthiness · Avioverse"
description: "Type of compliance Means of compliance Associated compliance documents Engineering evaluation MC0:"
url: "https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements/appendix-a-to-amc1-21l-a-24-b"
---

# Appendix A to AMC1 21L.A.24(b) Means-of-compliance codes

Annex Ib · Regulation (EU) No 748/2012 · EAR revision 27 Nov 2025

Appendix Appendix

## Appendix A to AMC1 21L.A.24(b) Means-of-compliance codes

| Type of compliance      | Means of compliance                                                                                               | Associated compliance documents                                                                                  |
| ----------------------- | ----------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------- |
| Engineering evaluation  | MC0: (a) compliance statement (b) reference to design data (c) election of methods, factors, etc. (d) definitions | (a) Design data (b) Recorded statements                                                                          |
|                         | MC1: design review                                                                                                | (c) Descriptions (d) Drawings                                                                                    |
|                         | MC2: calculation/analysis                                                                                         | (e) Substantiation reports                                                                                       |
|                         | MC3: safety assessment                                                                                            | (f) Safety analyses                                                                                              |
| Tests                   | MC4: laboratory tests                                                                                             | (g) Test programmes (h) Test reports (i) Test interpretations                                                    |
|                         | MC5: ground tests on related product(s)                                                                           |                                                                                                                  |
|                         | MC6: flight tests                                                                                                 |                                                                                                                  |
|                         | MC8: simulation                                                                                                   |                                                                                                                  |
| Inspection              | MC7: design inspection/audit                                                                                      | (j) Inspection or audit reports                                                                                  |
| Equipment qualification | MC9: equipment qualification                                                                                      | Note: Equipment qualification is a process that may include all previous means of compliance at equipment level. |

APPENDIX · Appendix A to AMC1 21L.A.24(b) — Regulation (EU) No 748/2012 · ED Decision 2023/013/R · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025

[All rules in SECTION A - TECHNICAL REQUIREMENTS](https://avioverse.aero/regulations/easa/initial-airworthiness/annex-ib/section-a-technical-requirements)

Consolidated from the EASA Easy Access Rules (revision 27 Nov 2025, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.