(a) system design authority that is resp(a) system design authority that is responsible for the design of the system and procedures;

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Turn the raw legal text into a practical explanation grounded in Manual of Standards Part 139H - Standards Applicable to the Provision of Aerodrome Rescue and Fire Fighting Services.

Chapter 23: Change Management Systems

CASR Reference:	Regulation 139.895

Section 23.1: General

23.1.1 Standard: Safety Management

23.1.1.1 A change management system must be established and documented, which defines the policy, procedures and practices for managing the safety of the ARFFS and any change in the level of service provision.

23.1.1.2 The procedure must be designed to reduce the risk to any changes that may occur within the operational service and may employ any, or a combination of the following (this is not a restrictive list):

(a) process and/or procedural redesign;

(b) equipment redesign/new equipment;

(c) introduction of new extinguishing agents;

(d) staff training;

(e) administrative controls;

(f) any additional ARFFS operational hazard.

23.1.1.3 The procedures must ensure that all changes are documented in such a way that all users are informed of the change and details approval authorities who are linked to the identified safety accountabilities.

23.1.1.4 The approving authority is required to be linked to any action relating to system design, system operation or restoration of a service and monitoring system, these areas can be defined as:

(a) system design authority that is responsible for the design of the system and procedures;

(b) operating authority that is responsible for the general operation of the system or procedure; and

(c) maintenance authority that is responsible for the maintenance of the system or procedure.

23.1.1.5 Introduction of new technology that can reduce staffing levels in vehicle operation may be approved by CASA following the submission of a safety case.