---
title: "CS 25.1445 Equipment standards for the oxygen distributing system — CS-25 · Avioverse"
description: "When oxygen is supplied to both crew and passengers, the distribution system must be designed for either – (1) A source of supply for the flight crew on…"
url: "https://avioverse.aero/regulations/easa/cs-25/subpart-f/cs-25-1445"
---

# CS 25.1445 Equipment standards for the oxygen distributing system

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

IR Implementing rule

## CS 25.1445 Equipment standards for the oxygen distributing system

(a) When oxygen is supplied to both crew and passengers, the distribution system must be designed for either –

(1) A source of supply for the flight crew on duty and a separate source for the passengers and other crew members; or

(2) A common source of supply with means to separately reserve the minimum supply required by the flight crew on duty.

(b) Portable walk-around oxygen units of the continuous flow, diluter demand, and straight demand kinds may be used to meet the crew or passenger breathing requirements.

\[Amdt 25/12]

IR · CS 25.1445 — CS-25 · ED Decision 2012/008/R · CS-25 Easy Access Rules · EAR revision 26 Jan 2023

[All rules in SUBPART F – EQUIPMENT](https://avioverse.aero/regulations/easa/cs-25/subpart-f)

Consolidated from the EASA Easy Access Rules (revision 26 Jan 2023, 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.