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Operational Safety Instructions

Operational Safety Instructions

It is the responsibility of all employers to ensure that relevant Operational Safety Instructions (OSIs) are brought to the attention of their staff. However, individuals remain responsible for their own actions and those who are in any doubt should consult their supervisor or manager.

This page contains all current OSIs, downloadable in PDF format. The subject matter of the OSIs has been reviewed and those no longer of relevance, or which are considered to be sufficiently promulgated, have been deleted without replacement.

Operational Safety Instructions (OSIs)

Safety management system

Title Date


Mandatory Occurrence Reporting 09 Dec 2019
ASSMS_OSI_067 Airside Incident Reporting and Investigation 03 Apr 2024 V3.0


Aerodrome Manual 20 Mar 2023 V7.0

Promulgation of information

Document Title Date   Version
ASPROM_OSI_070  Notification of Cancelled OSI's 1 Feb 2022 V2.0

Aerodrome works

Document Title Date Version
ASWorks_OSI_004 Control of Work Airside 16 Nov 2019


Appendix A

Control of Work Airside Appendix A - Permits for Working Airside 18 Dec 2019 V3.0


Appendix B

Control of Work Airside Appendix B - Procedures for Working Airside 18 Dec 2019 V3.0
ASWorks_OSI_003 Procedure for the Approval of Crane and Other Tall Construction Equipment 21 Jan 2019 V2.0

Aerodrome safeguarding

Document Title Date Version
ASSG_OSI_050 Drones at Heathrow 18 December 2020

Roads, vehicles and equipment

Document Title Date Version
ASDRVE_OSI_089 Vehicle Wash Bay Facilities – Airside 4 Feb 2020
ASDRVE_OSI_087 Management of Airside Safety Offences 22 Aug 2023 V2.0
ASDRVE_OSI_080 Driving in Airside Tunnels 9 Oct 2020 V3.1



Cargo Tunnel Driver News 4 Sep 2019  
ASDRVE_OSI_005 Vehicles and Equipment Airside - Operation 18 Nov 2020 V2.0


Appendix B

Vehicles and Equipment Airside - Operation 20 Jan 2019  
ASDRVE_OSI_006 Airside Driver Training and the Airside Driver Permit 17 Mar 2017 V1.1
ASDRVE_OSI_008 Vehicles and Equipment Airside - Requirements 5 Nov 2019 V5.1
ASDRVE_OSI_009 Escorting of Vehicles Airside 22 Jan 2020 V2.0
ASDRVE_OSI_010 ATC Radio Frequencies Control of Vehicles on the Manoeuvring Area 12 Nov 2021 V5.0



AIP Supplement 047/2018 30 Aug 2018  
ASDRVE_OSI_011 Airbridges - Operators Permit, Operation and Use 13 Feb 2012  
ASDRVE_OSI_012 Unit Load Device Management and Dolly / Trailer Equipment Standards 10 Sept 2021 V2.0
ASDRVE_OSI_013 Airbridge Operations - Pier Six 29 May 2014  
ASDRVE_OSI_015 Control Post 16 Operating Protocol 4 Oct 2017
ASDRVE_OSI_017 Pedestrian Walkways and Crossing Airside 9 Jan 2020 V2.0
ASDRVE_OSI_018 Aircraft Fixed Electrical Ground Power Operating Procedures and Conditions of Use 22 Jan 2024 V2.0
ASDRVE_OSI_074 ATC Recognised Callsigns for Vehicle 26 Mar 2024 V6.0

Ground Operations

Document Title Date Version
ASGrOps_OSI_019 Fuelling of Aircraft 03 Aug 2021 V2.0
ASGrOps_OSI_021 Aircraft Arrivals Procedure on Stand 18 Jun 2020 V3.0
ASGrOps_OSI_022 Aircraft Turn Round Procedures 28 Jun 2021 V2.0
ASGrOps_OSI_023 Aircraft Departure Procedures off Stand
24 Feb 2018 V2.0
ASGrOps_OSI_024 Aircraft Maintenance on Stand
05 Nov 2021 V3.0
ASGrOps_OSI_026 Aircraft Towing Operations 7 Mar 2023 V3.0
ASGrOps_OSI_030 Aircraft Aprons/Stands - Types & Markings 03 Jan 2020 V2.0
ASGrOps_OSI_033 Stand 601 - 609 09 Aug 2018 V2.0
ASGrOps_OSI_034 Stands - Operations of Royal Suite Apron and the Introduction of Stand 457 457L 457R and Stand 458 06 Aug 2021 V2.1
ASGrOps_OSI_036 Detention of Aircraft 03 Jul 2020 V2.0
ASGrOps_OSI_037 Aircraft Remote Holding Procedure 14 Mar 2021 V2.0
ASGrOps_OSI_039 Protocol for Notification of Communicable Disease or any Death on Board Aircraft at Heathrow 08 Sep 2020 V2.1
ASGrOps_OSI_041 Minimum Induction Training for Staff Operating on Airside Roads and Ramp Areas 18 Feb 2019 V3.0
ASGrOps_OSI_042 Use of Personal Protective Equipment Airside 01 Mar 2018 V3.4
ASGrOps_OSI_043 Prohibition of Smoking in Airside Areas 21 Jan 2020 V2.0
ASGrOps_OSI_045 Handling of Electric Mobility Aids Airside 10 Feb 2023 V2.0
ASGrOps_OSI_046 Alcohol and Classified Drugs 25 Mar 2020 V3.0
ASGrOps_OSI_047 Allocation of Aircraft Parking Stands 30 Jan 2020 V2.0
ASGrOps_OSI_048 Aircraft Diversion Procedures 19 Feb 2019 V2.0
ASGrOps_OSI_072 Airfield Pushback Restrictions 28 Apr 2020 V2.0
ASGrOps_OSI_073 Use of Remotely Operated Pushback Vehicles 28 Jun 2019 V2.0
ASGrOps_OSI_081 Airside Cleanliness and FOD Management 21 Feb 2024 V2.0
ASGrOps_OSI_090 Airport Operations Plan (AOP) 07 Feb 2020 V1.0
ASGrOps_OSI_092 Baggage Operational Safety Standards 26 Apr 2021 V1.0

Emergency Operations and Contingencies

Document Title Date Version
Operations at Heathrow Airport with Depleted Rescue and Fire Fighting Service 6 Oct 2023 V2.1
ASEO_OSI_069 Aircraft Recovery Plan
13 Apr 2023 V2.0
ASEO_OSI_076 Emergency Orders 31 Mar 2023 V8.0

Adverse weather

Document Title Date Version
ASWeather_OSI_052 Low Visibility Operations 13 Apr 2023 V2.1 
ASWeather_OSI_053 Winter Hazards and the Aerodrome Snow Plan 15 Nov 2023 V8.0
ASWeather_OSI_053 App_A
Winter Self-Help Locations 2023-24 15 Nov 2023 V4.0
ASWeather_OSI_054 Adverse Weather 28 Jan 2020 V2.0

Environmental Management

Title Date Version
ASEnv_OSI_038 Administration and Enforcement of Night Aircraft Movement and Quota Limits (Effective from 01:00 hours on 31 Mar 2024) 28 Mar 2024 V15.0


Appendix A

Heathrow Night Movement and Quota Allocation Procedures 30 Mar 2022  


Appendix B

Flow Chart for the Management of Night Quota 30 Mar 2022  


Appendix C

Scheduling Restrictions in the Night Period 30 Mar 2022  
ASEnv_OSI_055 Pre-conditioned Air Rules and Procedures 12 Dec 2023 V2.0
ASEnv_OSI_056 Pollution Prevention 07 Mar 2023 V1.1
ASEnv_OSI_057 De-icing Fluid Management Reporting Procedures 7 Sep 2023 V2.0
ASEnv_OSI_058 Airside Environment - Waste Management and Disposal Including Aircraft Cabin Waste 18 May 2021 V2.0
ASEnv_OSI_059 Spillage and Incident Reporting Procedures 07 May  2022 V2.1
ASEnv_OSI_060 Surcharges for Noise Infringements by Departing Aircraft 15 Feb 2024 V2.1
Ground Noise at Heathrow - Approval Control Process and Safety of Engine Ground Running
5 Nov 2019 v3.1
ASEnv_OSI_062  Disposal of Pollutants, Oils and Lubricants and other Hazardous Waste 07 May 2022 V2.0
ASEnv_OSI_078 Use of Aircraft Auxiliary Power Units 31 January 2024 V2.0

Wildlife Hazard Management

Document Title Date Version
ASWHM_OSI_077 Wildlife Hazards and Reporting of Birdstrikes 21 Nov 2023 V3.0


Date Version
ASOther_OSI_084 Ice Fall and Vortex Reporting and Management 13 Dec 2018
ASOther_OSI_064 Airfield Map  18 October 2023 V10.0