Hong Kong Civil Aviation Department (CAD)

Search Hong Kong aviation legislation and CAD requirements

Use AeroCite to find relevant clauses and get written answers from the documents listed below.

Documents indexed by AeroCite

Headline documents: HKAR-1 · HKAR-21 · HKAR-66 · HKAR-145 · CAD 360 Operation of Aircraft

  • Civil Aviation Ordinance (Cap. 448) and subsidiary legislation, including the Air Navigation (Hong Kong) Order 1995 and the Small Unmanned Aircraft Order.
  • English legislation text from the Department of Justice.
  • CAD requirements and guidance, Hong Kong Aviation Requirements (HKARs), and Airworthiness Notices.
  • Small unmanned aircraft circulars and notices.
View all indexed documents (211)

Titles, editions and dates are shown as recorded in AeroCite's index. Check the official document for the issue in force.

Regulations (142)

  • DEFINITIONS

    Airworthiness Notice No. 1A · AWN · Issue 14 · 2026-06-30

  • AVIATION LEGISLATION OF HONG KONG

    Airworthiness Notice No. 2 · AWN · Issue 4 · 2017-07-31

  • LICENSED AIRCRAFT MAINTENANCE PERSONNEL–CERTIFICATION RESPONSIBILITIES OF TYPE RATED / AUTHORISED PERSONNEL IN RELATION TO ARTICLES 9 AND 11 OF THE AIR NAVIGATION (HONG KONG) ORDER 1995 AND HONG KONG AVIATION REQUIREMENTS HKAR 145.50

    Airworthiness Notice No. 3 · AWN · Issue 27 · 2024-10-31

  • PLACARDS

    Airworthiness Notice No. 7 · AWN · Issue 6 · 2024-10-31

  • SYMBOLIC EXIT SIGNAGE

    Airworthiness Notice No. 7A · AWN · Issue 5 · 2024-10-31

  • EXTERIOR MARKINGS

    Airworthiness Notice No. 7B · AWN · Issue 2 · 2019-06-28

  • AIRCRAFT REGISTRATION AND DEREGISTRATION

    Airworthiness Notice No. 9 · AWN · Issue 7 · 2025-10-31

  • MEASUREMENTS OF THE NATIONALITY & REGISTRATION MARKS

    Airworthiness Notice No. 9A · AWN · Issue 2 · 2016-10-31

  • EXPORT CERTIFICATE OF AIRWORTHINESS

    Airworthiness Notice No. 9B · AWN · Issue 2 · 2024-04-30

  • NOISE CERTIFICATES

    Airworthiness Notice No. 11 · AWN · Issue 2 · 2014-12-05

  • AUTHORISATION OF NON HKAR-145 AIRCRAFT MAINTENANCE ORGANISATIONS

    Airworthiness Notice No. 14 Appendix No. 1 · AWN · Issue 5 · 2002-01-31

  • THE PROCESS FOR ACCEPTANCE OF USED ENGINES, ENGINE MODULES, AUXILIARY POWER UNITS (APUs) AND PROPELLERS FOR USE ON AIRCRAFT REQUIRING A HONG KONG CERTIFICATE OF AIRWORTHINESS

    Airworthiness Notice No. 16 · AWN · Issue 11 · 2014-07-31

  • THE ACCEPTANCE OF AIRCRAFT COMPONENTS

    Airworthiness Notice No. 17 · AWN · Issue 10 · 2021-11-18

  • ORGANISATIONS ACCEPTED FOR RELEASE OF NEW OR MAINTAINED (USED) COMPONENTS

    Airworthiness Notice No. 17 Appendix No. 1 · AWN · Issue 20 · 2025-11-12

  • ACCEPTANCE OF AERONAUTICAL PRODUCTS

    Airworthiness Notice No. 17A · AWN · Issue 4 · 2021-11-18

  • COTTON, LINEN AND SYNTHETIC FABRIC-COVERED AIRCRAFT

    Airworthiness Notice No. 20 · AWN · Issue 7 · 2019-06-28

  • GROUND PROXIMITY WARNING SYSTEM

    Airworthiness Notice No. 26 · AWN · Issue 6 · 2022-09-30

  • EMERGENCY LOCATOR TRANSMITTER (ELT)

    Airworthiness Notice No. 27 · AWN · Issue 8 · 2023-10-31

  • CODING AND REGISTRATION OF HONG KONG 406 MHz ELTs

    Airworthiness Notice No. 27 Appendix No. 1 · AWN · Issue 6 · 2023-10-31

  • NON-COMPLIANCE FINDINGS

    Airworthiness Notice No. 28 Appendix No. 1 · AWN · Issue 1 · 2022-09-30

  • RECOGNITION OF THE MAINTENANCE ORGANISATIONS

    Airworthiness Notice No. 30 Appendix No. 1 · AWN · Issue 1 · 2021-12-31

  • RECOGNITION OF THE MAINTENANCE TRAINING ORGANISATIONS

    Airworthiness Notice No. 30 Appendix No. 2 · AWN · Issue 1 · 2021-12-31

  • ACCEPTANCE OF THE AIRCRAFT MAINTENANCE LICENCE HOLDERS

    Airworthiness Notice No. 30 Appendix No. 3 · AWN · Issue 1 · 2021-12-31

  • TECHNICAL ARRANGEMENT ON AVIATION MAINTENANCE BETWEEN THE CIVIL AVIATION AUTHORITY OF SINGAPORE AND CIVIL AVIATION DEPARTMENT OF THE HONG KONG SPECIAL ADMINISTRATIVE REGION GOVERNMENT, CHINA

    Airworthiness Notice No. 30A · AWN · Issue 4 · 2024-04-30

  • AIRCRAFT RADIO AND RADIO NAVIGATION EQUIPMENT

    Airworthiness Notice No. 31 · AWN · Issue 7 · 2024-04-30

  • AIRCRAFT WEIGHT SCHEDULE

    Airworthiness Notice No. 32 · AWN · Issue 1 · 2023-02-01

  • CONDUCT OF WEIGHING

    Airworthiness Notice No. 32 Appendix No. 1 · AWN · Issue 1 · 2023-02-01

  • LIGHT AIRCRAFT PISTON ENGINE OVERHAUL PERIODS

    Airworthiness Notice No. 35 · AWN · Issue 6 · 2005-05-30

  • Supplementary information for AN No. 35

    Airworthiness Notice No. 35 Appendix No. 1 · AWN · Issue 4 · 2005-05-30

  • LIGHT AIRCRAFT PISTON ENGINE OVERHAUL PERIODS

    Airworthiness Notice No. 35 Appendix No. 2 · AWN · Issue 4 · 2005-05-30

  • HONG KONG MANDATORY AIRWORTHINESS REQUIREMENT

    Airworthiness Notice No. 36 Appendix No. 1 · AWN · Issue 5 · 2002-01-31

  • CARGO COMPARTMENT CLASS CHANGE

    Airworthiness Notice No. 36B · AWN · Issue 2 · 2003-09-30

  • COCKPIT SECURITY

    Airworthiness Notice No. 36E · AWN · Issue 4 · 2019-06-28

  • SERVICEABILITY CHECKS OF FLIGHT RECORDERS

    Airworthiness Notice No. 36F · AWN · Issue 11 · 2022-09-30

  • OPERATIONS OF SINGLE-ENGINE TURBINE-POWERED AEROPLANES AT NIGHT AND/OR IN INSTRUMENT METEOROLOGICAL CONDITIONS (IMC) AND HELICOPTERS IN PERFORMANCE CLASS 3 IN IMC EXCEPT SPECIAL VISUAL FLIGHT RULES (VFR) FLIGHTS

    Airworthiness Notice No. 36G · AWN · Issue 1 · 2009-02-23

  • PAINTING OF AIRCRAFT

    Airworthiness Notice No. 38 · AWN · Issue 7 · 2005-01-31

  • THE SELECTION AND PROCUREMENT OF ELECTRONIC COMPONENTS

    Airworthiness Notice No. 39 · AWN · Issue 5 · 2002-01-31

  • GAS TURBINE ENGINE PARTS SUBJECT TO RETIREMENT OR ULTIMATE (SCRAP) LIVES

    Airworthiness Notice No. 44 · AWN · Issue 4 · 2002-01-31

  • SOFTWARE MANAGEMENT

    Airworthiness Notice No. 45 · AWN · Issue 5 · 2019-06-28

  • LICENSED AIRCRAFT MAINTENANCE ENGINEERS PERSONAL RESPONSIBILITY WHEN MEDICALLY UNFIT OR UNDER THE INFLUENCE OF DRINK OR DRUGS

    Airworthiness Notice No. 47 · AWN · Issue 6 · 2006-09-30

  • ELIGIBILITY OF ORGANISATIONS FOR DESIGN AND PRODUCTION APPROVAL

    Airworthiness Notice No. 49 · AWN · Issue 2 · 2003-01-31

  • DETERIORATION OF WOODEN AIRCRAFT STRUCTURES

    Airworthiness Notice No. 50 · AWN · Issue 5 · 2005-09-30

  • MAINTENANCE CONCESSION CONTROL

    Airworthiness Notice No. 52 · AWN · Issue 7 · 2015-07-31

  • VERTICAL SPEED INDICATORS ON IMPORTED AIRCRAFT

    Airworthiness Notice No. 53 · AWN · Issue 5 · 2004-01-31

  • AIRCRAFT, ENGINE & VARIABLE-PITCH PROPELLER LOG BOOKS FOR AIRCRAFT NOT EXCEEDING 2730 kg MTWA

    Airworthiness Notice No. 54 · AWN · Issue 5 · 2023-07-31

  • MODIFICATION RECORD BOOK

    Airworthiness Notice No. 54 Appendix No. 1 · AWN · Issue 1 · 2023-07-31

  • FUEL TANK SAFETY REVIEW

    Airworthiness Notice No. 55 · AWN · Issue 2 · 2003-09-30

  • EMERGENCY FLOOR PATH LIGHTING SYSTEM

    Airworthiness Notice No. 56 · AWN · Issue 7 · 2016-01-29

  • TOILET FLUSH MOTOR

    Airworthiness Notice No. 57 · AWN · Issue 4 · 2002-01-31

  • FLAME RESISTANT FURNISHING MATERIALS

    Airworthiness Notice No. 58 · AWN · Issue 5 · 2006-09-30

  • AIRCRAFT SEATS AND BERTHS - RESISTANCE TO FIRE

    Airworthiness Notice No. 59 · AWN · Issue 3 · 2002-01-31

  • COCKPIT, CABIN AND TOILET FIRE PROTECTION

    Airworthiness Notice No. 60 · AWN · Issue 6 · 2019-06-28

  • Fire Extinguishing Agents

    Airworthiness Notice No. 60A · AWN · Issue 3 · 2016-12-30

  • IMPROVED FLAMMABILITY TEST STANDARDS FOR CABIN INTERIOR MATERIALS

    Airworthiness Notice No. 61 · AWN · Issue 4 · 2006-05-30

  • FATIGUE LIVES

    Airworthiness Notice No. 62 · AWN · Issue 4 · 2002-01-31

  • PORTABLE OXYGEN EQUIPMENT PRESSURE RELIEF

    Airworthiness Notice No. 67 · AWN · Issue 3 · 2002-01-31

  • APPROVAL OF TEST HOUSES HOLDING CNAS/HKAS/UKAS ACCREDITATION

    Airworthiness Notice No. 69 · AWN · Issue 6 · 2014-12-05

  • TYRE BURSTS IN FLIGHT - INFLATION MEDIA

    Airworthiness Notice No. 70 · AWN · Issue 4 · 2006-05-30

  • MAINTENANCE ERROR MANAGEMENT SYSTEMS

    Airworthiness Notice No. 71 · AWN · Issue 4 · 2018-11-08

  • AIRWORTHINESS CONCESSIONS IN RESPECT OF AIRCRAFT WITHOUT A HONG KONG TYPE CERTIFICATE

    Airworthiness Notice No. 74 · AWN · Issue 6 · 2015-12-31

  • CRITERIA APPLIED BY THE DIRECTOR-GENERAL WHEN CONSIDERING CONCESSIONS AGAINST HONG KONG CERTIFICATION REQUIREMENTS

    Airworthiness Notice No. 74 Appendix No. 2 · AWN · Issue 6 · 2015-12-31

  • MAINTENANCE REQUIREMENTS FOR VARIABLE PITCH PROPELLERS INSTALLED ON AIRCRAFT HOLDING A HONG KONG CERTIFICATE OF AIRWORTHINESS

    Airworthiness Notice No. 75 · AWN · Issue 5 · 2004-05-30

  • Propeller maintenance periods

    Airworthiness Notice No. 75 Appendix No. 1 · AWN · Issue 5 · 2004-05-30

  • ELECTRICAL POWER SUPPLIES FOR AIRCRAFT RADIO SYSTEMS

    Airworthiness Notice No. 76 · AWN · Issue 3 · 2006-09-30

  • COUNTER/POINTER ALTIMETERS

    Airworthiness Notice No. 77 · AWN · Issue 4 · 2007-01-31

  • SAFETY MANAGEMENT SYSTEMS

    Airworthiness Notice No. 78 · AWN · Issue 1 · 2007-01-31

  • CLASS C AND D CARGO OR BAGGAGE COMPARTMENT - FIRE CONTAINMENT CAPABILITY

    Airworthiness Notice No. 80 · AWN · Issue 4 · 2002-01-31

  • EMERGENCY POWER SUPPLY FOR ELECTRICALLY OPERATED GYROSCOPIC BANK AND PITCH INDICATORS (ARTIFICIAL HORIZONS)

    Airworthiness Notice No. 81 · AWN · Issue 5 · 2006-05-30

  • ELECTRICAL GENERATION SYSTEMS − AIRCRAFT NOT EXCEEDING 5700 kg MAXIMUM TOTAL WEIGHT AUTHORISED (MTWA)

    Airworthiness Notice No. 82 · AWN · Issue 5 · 2019-06-28

  • NO SMOKING PLACARD – AIRCRAFT TOILETS

    Airworthiness Notice No. 83 · AWN · Issue 11 · 2021-07-30

  • AIRBORNE ILS (LOCALISER) VOR AND VHF COMMUNICATION RECEIVERS IMPROVED FM BROADCAST INTERFERENCE IMMUNITY STANDARDS

    Airworthiness Notice No. 84 · AWN · Issue 5 · 2009-02-15

  • HF COMMUNICATION SYSTEM

    Airworthiness Notice No. 85 · AWN · Issue 2 · 2009-07-31

  • Aircraft Equipment

    Airworthiness Notice No. 86 · AWN · Issue 1 · 2009-02-15

  • TIME-PIECE AND RATE OF CLIMB AND DESCENT INDICATOR

    Airworthiness Notice No. 87 · AWN · Issue 1 · 2009-02-15

  • ELECTRICAL GENERATION SYSTEMS – BUS-BAR LOW VOLTAGE WARNING SINGLE-ENGINED AIRCRAFT WITH A HONG KONG CERTIFICATE OF AIRWORTHINESS

    Airworthiness Notice No. 88 · AWN · Issue 5 · 2018-11-08

  • USE OF HIGH INTENSITY ULTRA-VIOLET LAMPS IN FLUORESCENT PENETRANT AND MAGNETIC PARTICLE INSPECTIONS

    Airworthiness Notice No. 95 · AWN · Issue 5 · 2002-01-31

  • RETURN TO SERVICE OF AIRCRAFT ITEMS RECOVERED FROM AIRCRAFT INVOLVED IN ACCIDENTS/INCIDENTS AND UNSERVICEABLE AIRCRAFT

    Airworthiness Notice No. 97 · AWN · Issue 6 · 2020-02-07

  • EQUIPMENT APPROVAL

    Airworthiness Notice No. 101 · AWN · Issue 1 · 2008-09-30

  • PERSONNEL RESTRAINT SYSTEM

    Airworthiness Notice No. 101A · AWN · Issue 8 · 2025-04-30

  • LIFE JACKET

    Airworthiness Notice No. 101B · AWN · Issue 1 · 2008-09-30

  • PUBLIC ADDRESS SYSTEMS

    Airworthiness Notice No. 101C · AWN · Issue 4 · 2023-02-01

  • FLIGHT RECORDERS

    Airworthiness Notice No. 101D · AWN · Issue 12 · 2021-07-30

  • FIRST-AID KITS AND MEDICAL SUPPLIES

    Airworthiness Notice No. 101E · AWN · Issue 3 · 2018-11-08

  • HELICOPTERS CABIN CREW SEATS

    Airworthiness Notice No. 101F · AWN · Issue 1 · 2009-02-15

  • SAFETY HARNESS

    Airworthiness Notice No. 101G · AWN · Issue 2 · 2018-11-08

  • AIRBORNE COLLISION AVOIDANCE SYSTEM (ACAS)

    Airworthiness Notice No. 101H · AWN · Issue 2 · 2018-11-08

  • SECONDARY SURVEILLANCE RADAR (SSR) ATC MODE S TRANSPONDER

    Airworthiness Notice No. 101I · AWN · Issue 1 · 2014-01-30

  • EXIT IDENTIFICATION

    Airworthiness Notice No. 101J · AWN · Issue 1 · 2016-01-29

  • HELICOPTER LANDING LIGHTS

    Airworthiness Notice No. 101K · AWN · Issue 1 · 2014-07-31

  • WEATHER RADAR SYSTEM

    Airworthiness Notice No. 101L · AWN · Issue 2 · 2018-11-08

  • FORWARD-LOOKING WIND SHEAR WARNING SYSTEM

    Airworthiness Notice No. 101M · AWN · Issue 2 · 2018-11-08

  • UNDERWATER LOCATING DEVICE

    Airworthiness Notice No. 101P · AWN · Issue 1 · 2016-01-29

  • HELICOPTER LIFERAFT INSTALLATION

    Airworthiness Notice No. 101Q · AWN · Issue 3 · 2018-11-08

  • SURVIVAL SUIT

    Airworthiness Notice No. 101R · AWN · Issue 1 · 2018-11-08

  • OXYGEN DISPENSING UNITS AND SUPPLY

    Airworthiness Notice No. 101S · AWN · Issue 1 · 2018-11-08

  • LIFEJACKET FOR SINGLE-ENGINED AEROPLANE FLYING OVER WATER

    Airworthiness Notice No. 101T · AWN · Issue 1 · 2018-11-08

  • AUTOMATIC DEPENDENT SURVEILLANCE BROADCAST (ADS-B) OUT

    Airworthiness Notice No. 101U · AWN · Issue 2 · 2022-07-31

  • TURBINE AEROPLANE - RUNWAY OVERRUN AWARENESS AND ALERTING SYSTEM

    Airworthiness Notice No. 101V · AWN · Issue 1 · 2022-09-30

  • AIRWORTHINESS REQUIREMENTS OF SPECIFIC APPROVALS

    Airworthiness Notice No. 102 · AWN · Issue 3 · 2022-03-04

  • FUEL TANK FLAMMABILITY REDUCTION

    Airworthiness Notice No. 103 · AWN · Issue 1 · 2011-07-31

  • CARRIAGE OF SUPERNUMERARIES IN CARGO AEROPLANE

    Airworthiness Notice No. 104 · AWN · Issue 3 · 2020-02-07

  • VIBRATION HEALTH MONITORING SYSTEM FOR HELICOPTER

    Airworthiness Notice No. 105 · AWN · Issue 2 · 2018-11-08

  • AIRCRAFT REGISTRATION PLATE LOCATION

    Airworthiness Notice No. 106 · AWN · Issue 2 · 2014-07-31

  • FACILITATION OF THE TRANSPORT OF PERSONS WITH DISABILITIES ACCESS TO AIR SERVICES

    Airworthiness Notice No. 107 · AWN · Issue 1 · 2015-04-30

  • LOCATION OF AN AEROPLANE IN DISTRESS

    Airworthiness Notice No. 109 · AWN · Issue 6 · 2022-09-30

  • EVIDENCE TO SUBSTANTIATE APPLICATIONS

    Airworthiness Notice No. 110 Appendix No. 1 · AWN · Issue 2 · 2024-10-31

  • PUBLIC HEALTH RISK MITIGATION MEASURES IN RESPONSE TO PUBLIC HEALTH EMERGENCY OF INTERNATIONAL CONCERN (COMMUNICABLE DISEASES)

    Airworthiness Notice No. 111 · AWN · Issue 3 · 2023-10-31

  • RE-ESTABLISHMENT OF AIRCRAFT OPERATIONS AFTER LONG TERM PARKING OR STORAGE

    Airworthiness Notice No. 111A · AWN · Issue 4 · 2023-02-01

  • Requirements and Criteria for the Approval of Type Rating Training Offered by a Training Organisation

    CAD 34 · CAD Requirement · Issue 3, Amendment 2

  • Requirements Document: Pilot Licences and Associated Ratings

    CAD 54 · CAD Requirement · Revision 15, Amendment 2

  • SUA ATO Requirements Document

    CAD 162 · CAD Requirement · Revision 2

  • Low Visibility Operations (LVO)

    CAD 359 · CAD Requirement

  • CAD 360 Part One Operation of Aircraft

    CAD 360 · CAD Requirement · Fifth Edition, Amendment 60

  • CAD 360 Part Two Arrangements for Maintenance Support

    CAD 360 · CAD Requirement · Fifth Edition, Amendment 60

  • International Non-Public Transport Operations

    CAD 361 · CAD Requirement · Issue 3

  • The Avoidance of Fatigue in Aircrews

    CAD 371 · CAD Requirement · 2nd Edition

  • Flight Simulator Qualifications (Aeroplane)

    CAD 453(A) · CAD Requirement · 2nd Edition, Amendment 1 · 2024-04-24

  • Flight Simulator Qualifications (Helicopter)

    CAD 453(H) · CAD Requirement · 2nd Edition, Amendment 1 · 2024-04-24

  • Requirements for Approval of Flying Training Organisations Offering an Integrated Course of Training for Hong Kong Commercial Pilot's Licence with Instrument Rating (Aeroplanes)

    CAD 509(A) · CAD Requirement

  • Requirements for Approval of Flying Training Organisations Offering an Integrated Course of Training for Hong Kong Commercial Pilot's Licence (Helicopters) / Instrument Rating (Helicopters)

    CAD 509(H) · CAD Requirement

  • Master Minimum Equipment List (MMEL) / Minimum Equipment List (MEL)

    CAD 549 · CAD Requirement · Issue 2 Revision 2 · 2022-09-01

  • Civil Aviation Ordinance

    Cap. 448 · Ordinance · XML version 2020-03-19

  • Hong Kong Civil Aviation (Investigation of Accidents) Regulations

    Cap. 448 sub. leg. B · Regulations · XML version 2026-05-21

  • Air Navigation (Hong Kong) Order 1995

    Cap. 448 sub. leg. C · Order · XML version 2025-07-18

  • Air Navigation (Flight Prohibition) Order

    Cap. 448 sub. leg. E · Order · XML version 2021-04-01

  • Small Unmanned Aircraft Order

    Cap. 448 sub. leg. G · Order · XML version 2025-07-18

  • Specification of Parameters for Operating Requirements

    G.N. 1276 · Government Notice · 2022-03-18

  • Exemption Notice for Category A1 SUA

    G.N. 2303 · Government Notice · 2022-05-13

  • Designation of Restricted Flying Zones by the Director-General of Civil Aviation

    G.N. 4991 · Government Notice · 2022-09-09

  • Designation of Restricted Flying Zones by the Commissioner of Police

    G.N. 5133 · Government Notice · 2026-08-21

  • Designation of Restricted Flying Zones by the Commissioner of Police

    G.N. 5134 · Government Notice · 2026-08-21

  • Designation of Restricted Flying Zones by the Secretary for Security

    G.N. 5797 · Government Notice · 2026-09-18

  • Designation of Restricted Flying Zones by the Director-General of Civil Aviation

    G.N. 5936 · Government Notice · 2026-09-21

  • Airworthiness Procedures, Issue 2 Revision 29

    HKAR-1 · HKAR · Issue 2 Revision 29 · 2026-02-06

  • Certification of Aircraft and Related Products, Parts and Appliances, and of Design and Production Organisations, Issue 4 Revision 2

    HKAR-21 · HKAR · Issue 4 Revision 2 · 2023-07-31

  • Licensing of Maintenance Personnel, Issue 3 Revision 7

    HKAR-66 · HKAR · Issue 3 Revision 7 · 2026-03-01

  • Approved Maintenance Organisations, Issue 5 Revision 6

    HKAR-145 · HKAR · Issue 5 Revision 6 · 2025-01-28

  • Approved Maintenance Training/Examinations, Issue 2 Revision 9

    HKAR-147 · HKAR · Issue 2 Revision 9 · 2025-08-01

  • Approval of Organisations to Recommend Certificate of Airworthiness Renewal, Issue 1 Revision 1

    HKAR-181 · HKAR · Issue 1 Revision 1 · 2022-11-04

  • Representatives of the Director-General

    HKAR-183 · HKAR · Issue 4 · 2025-07-31

  • HKAR-HTSO Hong Kong Technical Standard Orders

    HKAR-HTSO · HKAR · Issue 1 Revision 1 · 2012-12-10

  • Safety Requirements Document for Small Unmanned Aircraft Operations

    SRD · CAD Requirement · Issue 2 · 2025-07-18

Guidance (52)

  • FOREWORD

    Airworthiness Notice No. 1 · AWN · Issue 23 · 2018-11-08

  • TYRE WEAR LIMITATIONS

    Airworthiness Notice No. 5 · AWN · Issue 3 · 2001-10-30

  • AIRWORTHINESS PUBLICATIONS - GENERAL INFORMATION

    Airworthiness Notice No. 6 · AWN · Issue 16 · 2016-10-31

  • EXPERIENCE FROM INCIDENTS

    Airworthiness Notice No. 12 · AWN · Issue 26 · 2021-07-30

  • Functional Check and Control System Check on Fly-by-wire Aircraft

    Airworthiness Notice No. 12 Appendix No. 63 · AWN · Issue 1 · 2004-09-30

  • MODE 'S' TRANSPONDER ICAO 24-BIT AIRCRAFT ADDRESSES

    Airworthiness Notice No. 12 Appendix No. 67 · AWN · Issue 3 · 2011-07-31

  • FOREIGN OBJECT DAMAGE TO AIRCRAFT AND ENGINES

    Airworthiness Notice No. 12 Appendix No. 68 · AWN · Issue 2 · 2006-09-30

  • ATC TRANSPONDERS AND TRAFFIC ALERT AND COLLISION AVOIDANCE SYSTEMS (TCAS) GROUND TESTING

    Airworthiness Notice No. 12 Appendix No. 69 · AWN · Issue 2 · 2013-07-31

  • AIRCRAFT WASHING AND RINSING

    Airworthiness Notice No. 12 Appendix No. 70 · AWN · Issue 1 · 2013-07-31

  • APPROVAL OF MAINTENANCE ORGANISATIONS

    Airworthiness Notice No. 14 · AWN · Issue 12 · 2023-02-01

  • APPROVAL OF ORGANISATIONS HOLDING EUROPEAN JAR-145 or EASA PART 145 MAINTENANCE APPROVAL

    Airworthiness Notice No. 14 Appendix No. 2 · AWN · Issue 4 · 2008-05-30

  • LIMITED AUTHORISATION - GUIDANCE MATERIAL

    Airworthiness Notice No. 14 Appendix No. 5 · AWN · Issue 2 · 2002-01-31

  • ACCIDENT, SERIOUS INCIDENT AND MANDATORY OCCURRENCE REPORTING

    Airworthiness Notice No. 15 · AWN · Issue 9 · 2018-11-08

  • THE PROBLEM OF BOGUS PARTS

    Airworthiness Notice No. 19 · AWN · Issue 7 · 2009-02-15

  • MICROBIOLOGICAL CONTAMINATION OF FUEL TANKS OF TURBINE ENGINED AIRCRAFT

    Airworthiness Notice No. 21 · AWN · Issue 1 · 1990-06-01

  • GUIDANCE ON TESTING 406 MHz EMERGENCY LOCATOR TRANSMITTERS (ELT)

    Airworthiness Notice No. 27A · AWN · Issue 2 · 2025-10-31

  • FALSE ALERTS OF EMERGENCY LOCATOR TRANSMITTERS (ELT)

    Airworthiness Notice No. 27B · AWN · Issue 2 · 2021-07-30

  • APPROVAL OF ORGANISATIONS

    Airworthiness Notice No. 28 · AWN · Issue 13 · 2022-09-30

  • COOPERATION ARRANGEMENT ON JOINT MAINTENANCE MANAGEMENT BETWEEN CIVIL AVIATION ADMINISTRATION OF CHINA, CIVIL AVIATION DEPARTMENT OF THE HONG KONG SPECIAL ADMINISTRATIVE REGION GOVERNMENT, CHINA AND CIVIL AVIATION AUTHORITY OF THE MACAO SPECIAL ADMINISTRATIVE REGION, CHINA

    Airworthiness Notice No. 30 · AWN · Issue 7 · 2021-12-31

  • TECHNICAL ARRANGEMENT ON AIRCRAFT MAINTENANCE BETWEEN THE CIVIL AVIATION DEPARTMENT OF HONG KONG AND THE TRANSPORT CANADA CIVIL AVIATION DIRECTORATE

    Airworthiness Notice No. 30B · AWN · Issue 1 · 2006-09-30

  • EXAMPLE OF AIRCRAFT WEIGHT AND BALANCE REPORT

    Airworthiness Notice No. 32 Appendix No. 3 · AWN · Issue 1 · 2023-02-01

  • LIGHT AIRCRAFT PISTON ENGINE MAINTENANCE REQUIREMENTS FOR OPERATION BEYOND MANUFACTURERS' RECOMMENDED OVERHAUL PERIODS

    Airworthiness Notice No. 35 Appendix No. 3 · AWN · Issue 1 · 2005-05-30

  • CARBON MONOXIDE CONTAMINATION MINIMISATION AND DETECTION IN GENERAL AVIATION AIRCRAFT

    Airworthiness Notice No. 41 · AWN · Issue 7 · 2021-11-18

  • AIRCRAFT FIELD LOADABLE SOFTWARE (FLS) AND DATABASE FIELD LOADABLE DATA (DFLD)

    Airworthiness Notice No. 43 · AWN · Issue 4 · 2019-06-28

  • FLS AND DFLD CONTROL, TOOLING AND LOADING

    Airworthiness Notice No. 43 Appendix No. 1 · AWN · Issue 1 · 2005-09-30

  • DEFINITION OF EUROPEAN CRITICALITY CATEGORIES

    Airworthiness Notice No. 45 Appendix No. 1 · AWN · Issue 1 · 1987-06-01

  • SOFTWARE MANAGEMENT AND CERTIFICATION GUIDELINES

    Airworthiness Notice No. 45A · AWN · Issue 6 · 2019-06-28

  • RELATIONSHIP BETWEEN FUNCTION CRITICALITY CATEGORY AND SOFTWARE LEVEL

    Airworthiness Notice No. 45A Appendix No. 1 · AWN · Issue 4 · 2003-01-31

  • SOFTWARE ACCOMPLISHMENT SUMMARY OF DO-178B/ED-12B

    Airworthiness Notice No. 45A Appendix No. 2 · AWN · Issue 3 · 2003-01-31

  • Types of medicine in common use which may impair work performance

    Airworthiness Notice No. 47 Appendix No. 1 · AWN · Issue 2 · 2003-01-31

  • NO TECHNICAL OBJECTION

    Airworthiness Notice No. 51 · AWN · Issue 1 · 2023-02-01

  • CONTINUING AIRWORTHINESS AND SAFETY STANDARDS OF PASSENGER SERVICE AND IN-FLIGHT ENTERTAINMENT SYSTEMS

    Airworthiness Notice No. 65 · AWN · Issue 1 · 2006-01-31

  • GUIDANCE ON THE DEVELOPMENT OF IFE SCHEDULED MAINTENANCE TASKS AND SOLUTIONS

    Airworthiness Notice No. 65 Appendix No. 1 · AWN · Issue 1 · 2006-01-31

  • Aeroplanes Considered to have a Proven and Satisfactory Record

    Airworthiness Notice No. 74 Appendix No. 1 · AWN · Issue 2 · 1994-06-01

  • DISPOSITION OF SCRAP AIRCRAFT PARTS & MATERIALS

    Airworthiness Notice No. 96 · AWN · Issue 2 · 2002-01-31

  • PERMIT TO FLY FOR FERRY PURPOSE

    Airworthiness Notice No. 110 · AWN · Issue 4 · 2024-10-31

  • AIRCRAFT DISMANTLING

    Airworthiness Notice No. 112 · AWN · Issue 1 · 2026-07-16

  • Bilingual Placard Handbook Issue 3

    CAD 7 · CAD Guidance · Issue 3 · 2025-10-31

  • Recognition of Training Courses

    CAD 232 · CAD Guidance · Issue 1 Revision 1 · 2025-12-31

  • Helicopter Supplement: Guidance Document for Helicopter AOC Holders

    CAD 360 – Helicopter Supplement · CAD Guidance · First Edition, Amendment 4

  • Fatigue Management for Flight Crew Members

    CAD 372 · CAD Guidance · Issue 1

  • Screening Programme for Air Crew in Hong Kong on Psychoactive Substances

    CAD 373 · CAD Guidance · Issue 1

  • The Mandatory Occurrence Reporting Scheme: Information and Guidance

    CAD 382 · CAD Guidance · Issue 8 · 2021-11-30

  • Performance (Transport) Guidance Document

    CAD 385 · CAD Guidance · Issue 1

  • Condition Monitored Maintenance: an Explanatory Handbook

    CAD 418 · CAD Guidance · Issue 1 Revision 1 · 2012-12-10

  • Aircraft Maintenance Schedules and Programmes Information and Guidance

    CAD 452 · CAD Guidance · Issue 2 Revision 4 · 2024-07-05

  • Extended Diversion Time Operations (EDTO)

    CAD 513 · CAD Guidance · Issue 2, Amendment 1 · 2016-12-16

  • Ground Proximity Warning System (GPWS): Guidance Material

    CAD 516 · CAD Guidance · Issue 3

  • Electronic Flight Bag (EFB)

    CAD 562 · CAD Guidance · Issue 4

  • Safety Management Systems (SMS) for Air Operators, International Non-Public Transport Operators, Maintenance Organisations and Flying Training Organisations: A Guide to Implementation

    CAD 712 · CAD Guidance · Issue 2

  • Flight Data Monitoring: A Guide to Implementation

    CAD 739 · CAD Guidance · Issue 2, Amendment 2 · 2025-01-13

  • Guidance for Airline Operators in Hong Kong: Facilitation of Persons with Reduced Mobility in Air Travel

    CAD 800 · CAD Guidance · Issue 1

Circulars (17)

  • Permission for Conducting Small Unmanned Aircraft Advanced Operations

    AC-002 · Advisory Circular · 2026-04-24

  • Permission for Small Unmanned Aircraft Night Operations

    AC-003 · Advisory Circular · 2025-07-18

  • Permission for Small Unmanned Aircraft Extended Visual Line of Sight Operations

    AC-004 · Advisory Circular · 2025-07-18

  • Guidelines for Building Survey/ Inspection Operations using Small Unmanned Aircraft

    AC-005 · Advisory Circular · 2025-07-18

  • Guidelines for Aerial Survey or Aerial Photography Operations using Small Unmanned Aircraft

    AC-006 · Advisory Circular · 2025-07-18

  • Permission for Category B and / or Oversized Small Unmanned Aircraft Operations

    AC-007 · Advisory Circular · 2025-08-05

  • Guidelines for Small Unmanned Aircraft Operations within Enclosed Area

    AC-008 · Advisory Circular · 2025-07-18

  • Guidelines for Small Unmanned Aircraft Operations within School Premises

    AC-009 · Advisory Circular · 2025-07-18

  • Guidelines and Permission for Drone Show Event and Multiple Small Unmanned Aircraft Operation

    AC-010 · Advisory Circular · 2026-06-18

  • Guidelines and Permission for Drone Racing Event

    AC-011 · Advisory Circular · 2025-07-18

  • Operations of Model Aircraft under the Small Unmanned Aircraft Order

    AC-012 · Advisory Circular · 2025-07-18

  • Permission for Small Unmanned Aircraft Beyond Visual Line of Sight Operations within the Context of Regulatory Sandbox

    AC-013 · Advisory Circular · 2025-12-31

  • Permission for Category C Small Unmanned Aircraft Operations and Pre-defined Scenario #1

    AC-014 · Advisory Circular · 2026-07-31

  • Permission for Façade Cleaning Operations Using Small Unmanned Aircraft

    AC-015 · Advisory Circular · 2025-09-10

  • Guidelines and Permission for Small Unmanned Aircraft Operations Using Unmanned Aircraft Docking Station

    AC-016 · Advisory Circular · 2026-01-26

  • Permission for Cross-boundary Small Unmanned Aircraft Operations within the Context of Regulatory Sandbox X

    AC-017 · Advisory Circular · 2026-04-24

  • Notice of Changes to HKAR-66 Syllabus and Examination

    HKAR-66 · Notice · 2025-03-01

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