---
title: "CS 25J1557 Miscellaneous markings and placards — CS-25 · Avioverse"
description: "Reserved (b) APU fluid filler openings. The following applies:"
url: "https://avioverse.aero/regulations/easa/cs-25/subpart-j/cs-25j1557-miscellaneous-markings-and-placards"
---

# CS 25J1557 Miscellaneous markings and placards

Large Aeroplanes (CS-25) · CS-25 · EAR revision 26 Jan 2023

Official sources: [EASA Easy Access Rules (opens in a new tab)](https://www.easa.europa.eu/en/document-library/easy-access-rules/easy-access-rules-large-aeroplanes-cs-25)

IR Implementing rule

## CS 25J1557 Miscellaneous markings and placards

(a) Reserved

(b) APU fluid filler openings. The following applies:

(1) Reserved

(2) Oil filler openings must be marked at or near the filler cover with the word "oil".

\[Amdt 25/1]

IR — CS-25 · ED Decision 2005/006/R · CS-25 Easy Access Rules · EAR revision 26 Jan 2023

[All rules in SUBPART J – AUXILIARY POWER UNIT INSTALLATIONS](https://avioverse.aero/regulations/easa/cs-25/subpart-j)

Consolidated from the EASA Easy Access Rules (revision 26 Jan 2023, extracted 2 Nov 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.