---
title: "26.157 Conversion of Class D compartments — ADDITIONAL AIRWORTHINESS SPECIFICATIONS FOR OPERATIONS, Part-26 · Avioverse"
description: "Operators of large aeroplanes that are used in commercial air transport, and that were type certified on or after 1 January 1958, shall ensure that:"
url: "https://avioverse.aero/regulations/easa/additional-airworthiness/additional-airworthiness-specifications-for/subpart-b/26-157"
---

# 26.157 Conversion of Class D compartments

ADDITIONAL AIRWORTHINESS SPECIFICATIONS FOR OPERATIONS · Regulation (EU) 2015/640 · EAR revision 20 Mar 2026

IR Implementing rule

## 26.157 Conversion of Class D compartments

Operators of large aeroplanes that are used in commercial air transport, and that were type certified on or after 1 January 1958, shall ensure that:

(a) for large aeroplanes, the operation of which involves the transport of passengers, each Class D cargo or baggage compartment, regardless of its volume, complies with the certification specifications applicable to a Class C compartment;

(b) for large aeroplanes, the operation of which involves the transport of cargo only, each Class D cargo compartment, regardless of its volume, complies with the certification specifications applicable to either a Class C or a Class E compartment;

This point shall not apply to operators of an aeroplane model listed in Table A.1 of Appendix 1 to this Annex.

IR · 26.157 — Regulation (EU) 2015/640 · Regulation (EU) 2024/2954 · Part-26 Easy Access Rules · EAR revision 20 Mar 2026

[All rules in SUBPART B — AEROPLANES](https://avioverse.aero/regulations/easa/additional-airworthiness/additional-airworthiness-specifications-for/subpart-b)

Consolidated from the EASA Easy Access Rules (revision 20 Mar 2026, 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.