IEC 61174:2015

IEC 61174 ®
Edition 4.0 2015-08
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Maritime navigation and radiocommunication equipment and systems –
Electronic chart display and information system (ECDIS) – Operational and
performance requirements, methods of testing and required test results

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IEC 61174 ®
Edition 4.0 2015-08
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Maritime navigation and radiocommunication equipment and systems –

Electronic chart display and information system (ECDIS) – Operational and

performance requirements, methods of testing and required test results

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 47.020.70 ISBN 978-2-8322-2865-4

– 2 – IEC 61174:2015 RLV © IEC 2015

CONTENTS
FOREWORD . 12
1 Scope . 14
2 Normative references . 14
3 Terms, definitions and abbreviations . 16
3.1 Terms and definitions. 16
3.2 Abbreviations . 22
4 Minimum operational and performance requirements . 23
4.1 General . 23
4.2 ECDIS definitions . 24
4.3 Display of SENC information . 24
4.3.1 SENC . 24
4.3.2 Warning Indication about use of non-HO source . 24
4.3.3 Categories of display . 24
4.3.4 Safety contour . 26
4.3.5 Safety depth . 26
4.3.6 Information content . 26
4.3.7 Verification and updates . 26
4.3.8 Information about chart objects . 26
4.3.9 Display scale . 26
4.4 Provision and updating of chart information . 26
4.4.1 Contents of the SENC . 26
4.4.2 Updates . 27
4.5 Scale . 28
4.6 Display of other navigational information . 28
4.6.1 Common refrence system General for all overlays . 28
4.6.2 Radar and plotting information . 28
4.6.3 AIS information . 31
4.6.4 AIS target data . 34
4.6.5 AIS voyage-related data . 34
4.6.6 AIS CPA/TCPA alarms . 35
4.6.7 AIS lost target warning . 35
4.6.8 Anchor watch . 36
4.7 Display mode and generation of the neighbouring area . 36
4.8 Colours and symbols . 37
4.9 Display requirements . 37
4.9.1 Route planning and monitoring . 37
4.9.2 Chart presentation size . 37
4.9.3 Colour and resolution . 37
4.9.4 Presentation . 38
4.9.5 Removal of information categories . 38
4.10 Route planning, monitoring and voyage recording . 38
4.10.1 General . 38
4.10.2 Route planning . 38
4.10.3 Route monitoring . 40
4.10.4 Position integration . 42
4.10.5 Object information . 42

4.10.6 LOP position fix . 42
4.10.7 Voyage recording . 43
4.11 Calculations and accuracy . 43
4.12 Connections with other equipment (interfaces) . 44
4.12.1 Connection with navigation equipment . 44
4.12.2 Connection with BAM . 44
4.12.3 Connection with VDR . 45
4.12.4 Connection with BNWAS . 46
4.12.5 Connection for SENC information . 46
4.12.6 Connection with NAVTEX or SafetyNET for MSI . 46
4.12.7 Connection for transfer of route information . 47
4.12.8 Connection with INS . 47
4.13 Performance tests, malfunction alarms alerts and indications . 47
4.14 Back-up arrangements . 48
4.15 Power supply . 48
4.16 Software maintenance . 48
4.17 Quality management requirements . 48
4.18 Default control setting and saved user control settings . 49
5 Requirements contained in IHO special publications . 52
5.1 Content and structure of chart data .
5.1 Priority of chart display . 52
5.2 Display of chart information . 52
5.2.1 Scale and navigation purpose . 52
5.2.2 Text .
5.2.2 Units and legend . 53
5.2.3 Terminology . 54
5.3 Display functions . 54
5.3.1 Object information Cursor pick . 54
5.3.2 Navigational information . 55
5.3.2 Safety contour .
5.3.3 Navigational calculations .
5.3.3 Date-dependant ENC objects . 55
5.4 Supplementary display functions . 56
5.4.1 Additional mariner’s information . 56
5.4.2 Additional non-HO information . 56
5.4.3 Tidal adjustment . 57
5.5 Use of the presentation library . 57
5.5.1 Presentation library . 57
5.5.2 Test diagrams . 58
5.6 Display characteristics . 58
5.6.1 Display base .
5.6.2 Navigators notes .
5.7 Performance requirements . 58
5.7.1 Redraw . 58
5.7.2 Resolution . 59
5.7.3 Symbols . 59
5.7.4 Number of colours . 59
5.7.5 Brightness and contrast . 59
5.8 Ergonomic requirements . 60

– 4 – IEC 61174:2015 RLV © IEC 2015

5.8.1 Mode and orientation . 60
5.8.2 Windows . 60
5.8.3 Mariner’s information panel .
5.9 Update of chart information . 60
5.9.1 General . 60
5.9.2 Manual update . 62
5.9.3 Semi-automatic update . 63
5.9.4 Reception of updates . 63
5.9.5 Sequence check . 63
5.9.6 Consistency check . 63
5.9.7 Geographic applicability . 64
5.9.8 Summary report . 64
5.9.9 Review of ENC updates . 64
5.9.10 Modification of updates . 64
5.10 Operational area . 64
5.11 External removable media . 65
6 Methods of testing and required test results . 65
6.1 EUT installation, technical documentation, and test requirements . 65
6.2 Interfaces. 65
6.2.1 General . 65
6.2.2 BAM interface . 66
6.2.3 VDR interface . 67
6.2.4 BNWAS interface . 68
6.3 General requirements and presentation requirements . 68
6.3.1 General requirements . 68
6.3.2 Presentation requirements . 68
6.4 Preparation . 69
6.4.1 Power-up . 69
6.4.2 Initial ship parameters . 69
6.4.3 Required test items . 69
6.5 Initial data tests Requirements related to ENC chart . 70
6.5.1 General . 70
6.5.2 Presentation library . 71
6.5.3 ENC . 71
6.5.4 Encrypted ENC . 71
6.6 Accuracy . 72
6.7 Visual requirements . 72
6.7.1 Symbols . 72
6.7.2 Terminology, units and legend . 73
6.7.3 Colour table . 73
6.7.4 Resolution . 74
6.7.5 Display characteristics . 74
6.8 Functional requirements. 74
6.8.1 Methods of testing . 74
6.8.2 Standard display . 75
6.8.3 Display base . 75
6.8.4 All other information . 75
6.8.5 Viewing group layers and text group layers . 75
6.8.6 Display priorities . 76

6.8.7 Additional display functions. 76
6.8.8 Scale and navigation purpose . 77
6.8.9 Mode and orientation . 77
6.8.10 Safety contour . 78
6.8.11 Safety depth . 78
6.8.12 Object information Cursor pick . 80
6.8.13 Navigation related functions . 81
6.8.14 Position integration . 81
6.8.15 Radar and plotting other navigational information . 81
6.8.16 Loading of corrupted data . 84
6.8.17 Automatic updates . 84
6.8.18 Manual updates . 86
6.8.19 Self-tests of major functions. 86
6.8.20 Operational area . 87
6.8.21 External removable media . 88
6.9 Operational requirements . 88
6.9.1 Ergonomic principles . 88
6.9.2 Route planning . 88
6.9.3 Route monitoring . 90
6.9.4 Twelve-hour log . 91
6.9.5 Voyage record . 92
6.9.6 Power supply . 92
6.9.7 LOP position fix . 92
6.10 Software maintenance . 93
6.11 Quality management . 93
6.12 Default control setting and saved operator control settings . 93
6.13 AIS information and AIS target data . 94
6.13.1 General . 94
6.13.2 AIS targets and data report capacity . 94
6.13.3 AIS target filtering . 94
6.13.4 Activation and deactivation of AIS targets . 95
6.13.5 AIS functionality and presentation . 95
6.13.6 AIS target data . 96
6.13.7 AIS CPA/TCPA alarm . 97
6.13.8 AIS lost target warning . 97
6.14 AIS Voyage-related data . 98
6.15 Anchor watch . 98
6.16 NAVTEX and SafetyNET for MSI . 98
6.17 Interface for transfer of route information . 99
6.18 Interface with INS . 100
Annex A (normative) SENC information to be displayed during route planning and
route monitoring . 101
Annex B (normative) Navigational elements and parameters . 102
Annex C (normative) Areas for which special conditions exist . 103
Annex D (normative) Alarms and indicators Alerts and indications . 104
Annex E (normative) ENC test data set Mandatory terminology and abbreviations . 109
Annex F (normative) Back-up arrangements . 115
F.1 Introduction Overview . 115

– 6 – IEC 61174:2015 RLV © IEC 2015

F.2 Purpose . 115
F.3 Functional requirements. 115
F.3.1 Required functions and their availability . 115
F.3.2 Reliability and accuracy . 119
F.3.3 Malfunctions, warnings, alarms alerts and indications . 119
F.4 Operational requirements . 119
F.4.1 Ergonomics . 119
F.4.2 Presentation of information . 119
F.5 Power supply . 120
F.6 Connections with other equipment Other requirement . 120
F.6.1 Back-up Connection with other systems . 120
F.6.2 Route transfer interface . 121
F.6.3 Radar as back-up system . 121
F.6.4 Operational area . 121
F.6.5 Software maintenance . 122
F.6.6 Quality management . 122
F.6.7 Default Control Settings and Saved User Control Settings . 122
F.6.8 External removable media . 122
F.7 Methods of testing and required test results . 122
F.7.1 EUT installation and technical documentation . 122
F.7.2 Interfaces . 122
F.7.3 General requirements and presentation requirements . 122
F.7.4 Preparation . 122
F.7.5 Initial data tests – Chart . 123
F.7.6 Accuracy . 123
F.7.7 Visual requirements . 124
F.7.8 Functional requirements . 124
F.7.9 Operational requirements . 126
Annex G (normative) ECDIS in the RCDS mode of operation . 130
G.1 Introduction Overview . 130
G.2 RCDS definitions . 130
G.3 Display of SRNC information . 131
G.3.1 SRNC . 131
G.3.2 Categories of display . 131
G.3.3 Power failure . 131
G.3.4 Information content . 131
G.3.5 Verification and updates . 131
G.3.6 Indication . 132
G.4 Provision and updating of chart information . 132
G.4.1 Contents of the RNC . 132
G.4.2 Updates . 132
G.5 Scale . 133
G.6 Display of other navigational information . 133
G.6.1 Common reference system General for all overlays . 133
G.6.2 Radar and plotting information . 133
G.6.3 AS information . 134
G.6.4 AIS Target Data . 134
G.6.5 AIS Voyage Related Data . 134
G.6.6 AIS CPA/TCPA alarms . 134

G.6.7 AIS lost target warning . 134
G.6.8 Anchor watch . 134
G.7 Display mode and generation of the neighbouring area . 134
G.8 Colours and symbols . 135
G.9 Display requirements . 135
G.9.1 Route planning and monitoring . 135
G.9.2 Display characteristics . 135
G.9.3 Chart notes . 136
G.10 Route planning, monitoring and voyage recording . 136
G.10.1 General . 136
G.10.2 Route planning . 136
G.10.3 Route monitoring . 136
G.10.4 Position integration . 137
G.10.5 Object information . 138
G.10.6 LOP position fix . 138
G.10.7 Voyage recording . 139
G.11 Calculations and accuracy . 139
G.12 Connections with other equipment (interfaces) . 139
G.13 Performance tests, malfunction alarms alerts and indications . 140
G.14 Back-up arrangements for RCDS mode of operation . 140
G.15 Power supply for RCDS mode of operation . 140
G.16 Requirements contained in IHO special publications . 141
G.16.1 Structure of RNC data . 141
G.16.2 RNC data resolution and accuracy . 141
G.16.3 RNC meta-data . 141
G.16.4 RNC colours . 141
G.16.5 RNC notes, diagrams, etc . 142
G.16.6 Operational area . 142
G.16.7 External removable media . 142
G.17 Methods of testing and required test results . 142
G.17.1 Preparation– Required test items . 142
G.17.2 Initial data tests . 143
G.17.3 Accuracy . 144
G.17.4 Visual requirements . 144
G.17.5 Functional requirements . 145
G.17.6 Operational requirement . 151
G.18 RNC test data set . 154
Annex H (normative) Alarms ans indicators Alerts and indications in the RCDS mode
of operation . 155
Annex I (normative) Scenario definitions and plots . 156
I.1 Overview . 156
I.2 Scenario 1: . 157
I.3 Scenario 2: . 160
I.4 Scenario 3: . 163
I.5 Scenario 4: . 166
Annex J (informative) Tests required for encrypted ENC .
Annex J (informative) Guidance on geodetic calculations . 172
J.1 Overview . 172

– 8 – IEC 61174:2015 RLV © IEC 2015

J.2 Distance deviations between Great Circle (orthodrome) and Rhumb Line
(loxodrome) . 172
J.3 Bearing deviations at start point between Great Circle (orthodrome) and
Rhumb Line (loxodrome) . 173
Annex K (informative) Guidance for testing . 175
K.1 Methods of test derived from ISO 9241-12 . 175
K.2 Observation . 175
K.3 Inspection of documented evidence . 175
K.4 Measurement . 175
K.5 Analytical evaluation . 176
Annex L (normative) Testing for colours and intensity .
Annex L (informative) Examples of ENC Update Status Report . 180
L.1 Overview . 180
L.2 ENC Update Status Report − Summary . 180
L.3 ENC Update Status Report − Full . 181
L.4 ENC Management Report – Route Filtered . 183
Annex M (informative normative) Elements of an electronic chart database . 184
M.1 General . 184
M.2 ECDIS implementation . 184
M.3 Display base category . 185
M.3.1 Coastline layer . 185
M.3.2 Safety contour layer . 186
M.3.3 Isolated underwater dangers layer . 186
M.3.4 Isolated above-water dangers layer . 186
M.4 Standard display category . 187
M.4.1 Display base layer . 187
M.4.2 Additional aids to navigation and fixed structures layer . 187
M.4.3 Fairways layer . 188
M.4.4 Conspicuous features layer . 188
M.4.5 Prohibited and restricted areas layer . 188
M.4.6 Ferry routes layer . 188
M.4.7 Archipelagic sea lanes layer . 188
M.4.8 Buoys and beacons layer . 188
M.4.9 Traffic routeing layer . 189
M.5 All other information category . 189
M.5.1 Information about the chart display layer. 189
M.5.2 Natural and man-made features, Port features layer . 189
M.5.3 Depth, currents, etc. layer . 191
M.5.4 Seabed, obstructions, pipelines layer . 191
M.5.5 Traffic routes layer . 192
M.5.6 Special areas layer . 192
M.5.7 Service and small craft facilities layer . 192
M.6 Text grouping . 192
M.6.1 Important Text group layer . 192
M.6.2 Other Text group layer . 192
Annex N (informative) Cross-references between IEC 61174 editions and
MSC.232(82) .
Annex N (informative) Use cases for safety contour and safety depth . 196
Annex O (informative) Guidelines on use of electronic chart systems in polar waters . 198

O.1 Projection and coordinate system . 198
O.2 Consistency . 199
Annex P (normative) Scenarios for polar areas above 85° North . 200
Annex Q (normative) IEC 61162 interfaces . 206
Q.1 General . 206
Q.2 VDR interface . 208
Q.3 AIS interface and interrogation . 209
Q.4 Route transfer interface . 209
Q.5 BAM interface . 209
Annex R (informative) Conversion between IEC 61162-1 sentences and IEC 61162-3
parameter group numbers. 214
Annex S (normative)
...

IEC 61174 ®
Edition 4.0 2015-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Maritime navigation and radiocommunication equipment and systems –
Electronic chart display and information system (ECDIS) – Operational and
performance requirements, methods of testing and required test results

Matériels et systèmes de navigation et de radiocommunication maritimes –
Système de visualisation des cartes électroniques et d'information (ECDIS) –
Exigences opérationnelles et de fonctionnement, méthodes d'essai et résultats
d'essai exigés
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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International Standards for all electrical, electronic and related technologies.

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IEC 61174 ®
Edition 4.0 2015-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Maritime navigation and radiocommunication equipment and systems –

Electronic chart display and information system (ECDIS) – Operational and

performance requirements, methods of testing and required test results

Matériels et systèmes de navigation et de radiocommunication maritimes –

Système de visualisation des cartes électroniques et d'information (ECDIS) –

Exigences opérationnelles et de fonctionnement, méthodes d'essai et résultats

d'essai exigés
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 47.020.70 ISBN 978-2-8322-9454-3

– 2 – IEC 61174:2015 © IEC 2015
CONTENTS
FOREWORD . 12
1 Scope . 14
2 Normative references . 14
3 Terms, definitions and abbreviations . 16
3.1 Terms and definitions . 16
3.2 Abbreviations . 21
4 Minimum operational and performance requirements . 22
4.1 General . 22
4.2 ECDIS definitions . 23
4.3 Display of SENC information . 23
4.3.1 SENC . 23
4.3.2 Indication about use of non-HO source . 23
4.3.3 Categories of display . 23
4.3.4 Safety contour . 24
4.3.5 Safety depth . 25
4.3.6 Information content . 25
4.3.7 Verification and updates . 25
4.3.8 Information about chart objects . 25
4.3.9 Display scale . 25
4.4 Provision and updating of chart information . 25
4.4.1 Contents of the SENC . 25
4.4.2 Updates . 26
4.5 Scale . 26
4.6 Display of other navigational information . 26
4.6.1 General for all overlays . 26
4.6.2 Radar information . 27
4.6.3 AIS information . 30
4.6.4 AIS target data. 32
4.6.5 AIS voyage-related data . 33
4.6.6 AIS CPA/TCPA alarms . 33
4.6.7 AIS lost target warning . 34
4.6.8 Anchor watch . 34
4.7 Display mode and generation of the neighbouring area . 35
4.8 Colours and symbols. 35
4.9 Display requirements . 36
4.9.1 Route planning and monitoring . 36
4.9.2 Chart presentation size . 36
4.9.3 Colour and resolution . 36
4.9.4 Presentation . 36
4.9.5 Removal of information categories . 36
4.10 Route planning, monitoring and voyage recording . 36
4.10.1 General. 36
4.10.2 Route planning . 37
4.10.3 Route monitoring . 38
4.10.4 Position integration . 40
4.10.5 Object information. 41

4.10.6 LOP position fix . 41
4.10.7 Voyage recording . 41
4.11 Calculations and accuracy . 42
4.12 Connections with other equipment (interfaces) . 42
4.12.1 Connection with navigation equipment . 42
4.12.2 Connection with BAM . 42
4.12.3 Connection with VDR . 43
4.12.4 Connection with BNWAS . 44
4.12.5 Connection for SENC information . 44
4.12.6 Connection with NAVTEX or SafetyNET for MSI . 44
4.12.7 Connection for transfer of route information . 45
4.12.8 Connection with INS . 46
4.13 Performance tests, malfunction alerts and indications . 46
4.14 Back-up arrangements . 46
4.15 Power supply . 46
4.16 Software maintenance . 46
4.17 Quality management requirements . 47
4.18 Default control setting and saved user control settings . 47
5 Requirements contained in IHO publications . 49
5.1 Priority of chart display . 49
5.2 Display of chart information . 50
5.2.1 Scale and navigation purpose . 50
5.2.2 Units and legend . 50
5.2.3 Terminology . 51
5.3 Display functions . 51
5.3.1 Cursor pick . 51
5.3.2 Navigational information . 51
5.3.3 Date-dependant ENC objects . 52
5.4 Supplementary display functions . 52
5.4.1 Additional mariner’s information . 52
5.4.2 Additional non-HO information . 52
5.4.3 Tidal adjustment . 53
5.5 Use of the presentation library . 53
5.5.1 Presentation library . 53
5.5.2 Test diagrams . 53
5.6 Display characteristics . 53
5.7 Performance requirements . 54
5.7.1 Redraw . 54
5.7.2 Resolution . 54
5.7.3 Symbols . 54
5.7.4 Number of colours . 55
5.7.5 Brightness and contrast . 55
5.8 Ergonomic requirements . 55
5.8.1 Mode and orientation . 55
5.8.2 Windows . 55
5.9 Update of chart information . 56
5.9.1 General. 56
5.9.2 Manual update . 57
5.9.3 Semi-automatic update . 58

– 4 – IEC 61174:2015 © IEC 2015
5.9.4 Reception of updates . 58
5.9.5 Sequence check . 58
5.9.6 Consistency check . 59
5.9.7 Geographic applicability . 59
5.9.8 Summary report . 59
5.9.9 Review of ENC updates . 59
5.9.10 Modification of updates . 59
5.10 Operational area . 59
5.11 External removable media . 60
6 Methods of testing and required test results . 60
6.1 EUT installation, technical documentation, and test requirements . 60
6.2 Interfaces . 60
6.2.1 General. 60
6.2.2 BAM interface . 61
6.2.3 VDR interface . 62
6.2.4 BNWAS interface . 63
6.3 General requirements and presentation requirements . 63
6.3.1 General requirements . 63
6.3.2 Presentation requirements . 63
6.4 Preparation . 63
6.4.1 Power-up . 63
6.4.2 Initial ship parameters. 64
6.4.3 Required test items . 64
6.5 Requirements related to ENC chart . 64
6.5.1 General. 64
6.5.2 Presentation library . 65
6.5.3 ENC . 65
6.5.4 Encrypted ENC . 65
6.6 Accuracy . 65
6.7 Visual requirements . 65
6.7.1 Symbols . 65
6.7.2 Terminology, units and legend . 65
6.7.3 Colour table . 65
6.7.4 Resolution . 66
6.7.5 Display characteristics . 66
6.8 Functional requirements . 66
6.8.1 Methods of testing . 66
6.8.2 Standard display . 66
6.8.3 Display base . 66
6.8.4 All other information . 66
6.8.5 Viewing group layers and text group layers . 67
6.8.6 Display priorities . 67
6.8.7 Additional display functions . 67
6.8.8 Scale and navigation purpose . 67
6.8.9 Mode and orientation . 67
6.8.10 Safety contour . 68
6.8.11 Safety depth . 68
6.8.12 Cursor pick . 68
6.8.13 Navigation related functions . 68

6.8.14 Position integration . 69
6.8.15 Radar and other navigational information . 69
6.8.16 Loading of corrupted data . 72
6.8.17 Automatic updates . 72
6.8.18 Manual updates . 73
6.8.19 Self-tests of major functions . 73
6.8.20 Operational area . 73
6.8.21 External removable media. 74
6.9 Operational requirements . 74
6.9.1 Ergonomic principles. 74
6.9.2 Route planning . 74
6.9.3 Route monitoring . 76
6.9.4 Twelve hour log . 78
6.9.5 Voyage record . 78
6.9.6 Power supply . 78
6.9.7 LOP position fix . 78
6.10 Software maintenance . 79
6.11 Quality management . 79
6.12 Default control setting and saved operator control settings . 80
6.13 AIS information and AIS target data . 80
6.13.1 General. 80
6.13.2 AIS targets and data report capacity . 80
6.13.3 AIS target filtering . 80
6.13.4 Activation and deactivation of AIS targets . 81
6.13.5 AIS functionality and presentation . 81
6.13.6 AIS target data. 82
6.13.7 AIS CPA/TCPA alarm. 83
6.13.8 AIS lost target warning . 83
6.14 AIS Voyage-related data . 84
6.15 Anchor watch . 84
6.16 NAVTEX and SafetyNET for MSI . 85
6.17 Interface for transfer of route information . 85
6.18 Interface with INS . 86
Annex A (normative) SENC information to be displayed during route planning and
route monitoring . 87
Annex B (normative) Navigational elements and parameters . 88
Annex C (normative) Areas for which special conditions exist . 89
Annex D (normative) Alerts and indications . 90
Annex E (normative) Mandatory terminology and abbreviations . 92
Annex F (normative) Back-up arrangements . 98
F.1 Overview. 98
F.2 Purpose . 98
F.3 Functional requirements . 98
F.3.1 Required functions and their availability . 98
F.3.2 Reliability and accuracy . 102
F.3.3 Malfunctions, warnings, alerts and indications . 102
F.4 Operational requirements . 102
F.4.1 Ergonomics . 102

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F.4.2 Presentation of information . 102
F.5 Power supply . 103
F.6 Other requirement . 103
F.6.1 Connection with other systems . 103
F.6.2 Route transfer interface . 104
F.6.3 Radar as back-up system. 104
F.6.4 Operational area . 104
F.6.5 Software maintenance . 104
F.6.6 Quality management . 104
F.6.7 Default Control Settings and Saved User Control Settings . 104
F.6.8 External removable media. 104
F.7 Methods of testing and required test results . 105
F.7.1 EUT installation and technical documentation . 105
F.7.2 Interfaces . 105
F.7.3 General requirements and presentation requirements . 105
F.7.4 Preparation . 105
F.7.5 Initial data tests – Chart . 106
F.7.6 Accuracy . 106
F.7.7 Visual requirements . 106
F.7.8 Functional requirements . 106
F.7.9 Operational requirements . 108
Annex G (normative) ECDIS in the RCDS mode of operation . 111
G.1 Overview. 111
G.2 RCDS definitions . 111
G.3 Display of SRNC information . 112
G.3.1 SRNC . 112
G.3.2 Categories of display . 112
G.3.3 Power failure . 112
G.3.4 Information content . 112
G.3.5 Verification and updates . 112
G.3.6 Indication . 113
G.4 Provision and updating of chart information . 113
G.4.1 Contents of the RNC . 113
G.4.2 Updates . 113
G.5 Scale . 114
G.6 Display of other navigational information . 114
G.6.1 General for all overlays . 114
G.6.2 Radar information . 114
G.6.3 AS information . 115
G.6.4 AIS Target Data . 115
G.6.5 AIS Voyage Related Data . 115
G.6.6 AIS CPA/TCPA alarms . 115
G.6.7 AIS lost target warning . 115
G.6.8 Anchor watch . 115
G.7 Display mode and generation of the neighbouring area . 115
G.8 Colours and symbols. 116
G.9 Display requirements . 116
G.9.1 Route planning and monitoring . 116
G.9.2 Display characteristics . 116

G.9.3 Chart notes . 117
G.10 Route planning, monitoring and voyage recording . 117
G.10.1 General. 117
G.10.2 Route planning . 117
G.10.3 Route monitoring . 117
G.10.4 Position integration . 118
G.10.5 Object information. 119
G.10.6 LOP position fix . 119
G.10.7 Voyage recording . 119
G.11 Calculations and accuracy . 120
G.12 Connections with other equipment (interfaces) . 120
G.13 Performance tests, malfunction alerts and indications . 121
G.14 Back-up arrangements for RCDS mode of operation . 121
G.15 Power supply for RCDS mode of operation . 121
G.16 Requirements contained in IHO publications . 122
G.16.1 Structure of RNC data . 122
G.16.2 RNC data resolution and accuracy . 122
G.16.3 RNC meta-data . 122
G.16.4 RNC colours . 122
G.16.5 RNC notes, diagrams, etc . 123
G.16.6 Operational area . 123
G.16.7 External removable media. 123
G.17 Methods of testing and required test results . 123
G.17.1 Preparation – Required test items . 123
G.17.2 Initial data tests . 124
G.17.3 Accuracy . 124
G.17.4 Visual requirements . 125
G.17.5 Functional requirements . 126
G.17.6 Operational requirement . 131
G.18 RNC test data set . 134
Annex H (normative) Alerts and indications in the RCDS mode of operation . 135
Annex I (normative) Scenario definitions and plots . 136
I.1 Overview. 136
I.2 Scenario 1: . 137
I.3 Scenario 2: . 138
I.4 Scenario 3: . 140
I.5 Scenario 4: . 141
Annex J (informative) Guidance on geodetic calculations . 144
J.1 Overview. 144
J.2 Distance deviations between Great Circle (orthodrome) and Rhumb Line
(loxodrome) . 144
J.3 Bearing deviations at start point between Great Circle (orthodrome) and
Rhumb Line (loxodrome) . 145
Annex K (informative) Guidance for testing . 147
K.1 Methods of test derived from ISO 9241-12 . 147
K.2 Observation . 147
K.3 Inspection of documented evidence . 147
K.4 Measurement . 147
K.5 Analytical evaluation . 148

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Annex L (informative) Examples of ENC Update Status Report . 149
L.1 Overview. 149
L.2 ENC Update Status Report − Summary . 149
L.3 ENC Update Status Report − Full . 150
L.4 ENC Management Report – Route Filtered . 152
Annex M (normative) Elements of an electronic chart database . 153
M.1 General . 153
M.2 ECDIS implementation . 153
M.3 Display base category . 154
M.3.1 Coastline layer . 154
M.3.2 Safety contour layer . 155
M.3.3 Isolated underwater dangers layer . 155
M.3.4 Isolated above-water dangers layer . 155
M.4 Standard display category . 156
M.4.1 Display base layer . 156
M.4.2 Additional aids to navigation and fixed structures layer . 156
M.4.3 Fairways layer . 156
M.4.4 Conspicuous features layer . 156
M.4.5 Prohibited and restricted areas layer . 157
M.4.6 Ferry routes layer . 157
M.4.7 Archipelagic sea lanes layer . 157
M.4.8 Buoys and beacons layer . 157
M.4.9 Traffic routeing layer . 157
M.5 All other information category . 158
M.5.1 Information about the chart display layer . 158
M.5.2 Natural and man-made features, Port features layer . 158
M.5.3 Depth, currents, etc. layer . 159
M.5.4 Seabed, obstructions, pipelines layer . 160
M.5.5 Traffic routes layer . 160
M.5.6 Special areas layer . 160
M.5.7 Service and small craft facilities layer . 161
M.6 Text grouping . 161
M.6.1 Important Text group layer . 161
M.6.2 Other Text group layer . 161
Annex N (informative) Use cases for safety contour and safety depth . 163
Annex O (informative) Guidelines on use of electronic chart systems in polar waters . 165
O.1 Projection and coordinate syste
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