Non Spin/HSFClub Certificate2025
BarXNOR 38
Norges Seilforbund
Sognsveien 73
0854 OSLO
Rated boat velocities in knots
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat Angles42.6°42.6°40.5°38.7°37.5°37.4°37.2°37.2°38.6°
Beat VMG2.843.924.775.295.535.655.735.805.71
52°4.425.946.987.547.777.887.968.058.04
60°4.726.247.217.727.988.108.198.308.32
75°4.926.447.367.858.188.418.568.768.85
90°4.776.317.297.838.218.548.839.239.47
110°4.125.596.697.508.008.418.829.6510.23
120°3.645.126.367.267.838.258.679.5810.73
135°3.064.425.656.657.397.898.299.1210.18
150°2.503.704.845.856.727.407.878.659.50
Run VMG2.173.204.195.085.906.677.328.198.96
Gybe Angles143.3°143.3°148.7°153.9°160.4°175.7°177.7°178.9°178.4°
APH ToD:532.5CDL: 10.800APH ToT: 1.1268CertNo:9746
BOAT
ClassX-41 ODDesignerNielsJeppesenBuilderX-YachtsAge date01/2008Series date01/2007Offset fileX41.OD.OFFData file9746
HULL
Length Overall12.350 mMaximum Beam3.646 mDraft2.494 mDisplacement6,792 kgDLR5.4799IMS DivisionCruiser/RacerDynamic Allowance0.120%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.400m
CREW
Maximum weight762 kg(default)Minimum weight632 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail51.2351.99Headsail Luffed44.0144.01Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail15.65Storm Jib14.66Heavy Weather Jib39.57
SAIL LIMITS
Headsails6
✱ Zero set flying
Spinnakers0
✱ Spinnaker pole aboard
STABILITY
Righting MomentN/AStability IndexN/A
The owner and any other person in charge is responsible that boat is complying with her certificate in accordance with RRS 78.1 and ORC Rule 304.
Non Spin/HSFClub Certificate2025
BarXNOR 38
Norges Seilforbund
Sognsveien 73
0854 OSLO
Time Allowances in secs/NM
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat VMG1269.3918.1755.4680.0651.1636.9628.3620.6630.7
52°814.0606.0515.4477.6463.3456.6452.2447.3447.6
60°763.4577.2499.1466.1451.4444.4439.5433.6432.5
75°731.8559.2489.3458.4440.0428.0420.7411.0406.7
90°754.0570.5493.8459.6438.7421.4407.7390.2380.2
110°873.7644.1538.2480.0450.2428.2408.3373.2352.0
120°988.0702.6566.3495.6459.7436.1415.2376.0335.6
135°1175.0813.7637.4541.7487.1456.5434.5394.6353.7
150°1437.2973.1744.2615.3535.9486.6457.3416.3378.8
Run VMG1658.31123.7859.3708.1610.2539.9491.9439.7401.9
Selected Courses
Windward / Leeward1461.51020.9807.3694.0630.6588.4560.1530.1516.3
All purpose1077.6771.6626.8552.7512.8487.5470.1446.7431.9
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward660.00.9091
All purpose532.51.1268
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium529.31.1336
Triple Number Coastal/Long Distance High465.71.2884
Triple Number Windward/Leeward Low914.10.6564
Triple Number Windward/Leeward Medium656.00.9147
Triple Number Windward/Leeward High555.91.0793
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance583.01.0291
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium529.31.1336
Triple Number Coastal/Long Distance High465.71.2884
Triple Number Windward/Leeward Low914.10.6564
Triple Number Windward/Leeward Medium656.00.9147
Triple Number Windward/Leeward High555.91.0793
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1592.81031.2761.0624.9547.8506.5475.5428.1409.2
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8589
Downwind "popa"0.8800
70% up, 30% down "Ilhabela"0.8651
30% up, 70% down "Ilhabela-inverso"0.8735
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium529.31.1336
Triple Number Coastal/Long Distance High465.71.2884
Triple Number Windward/Leeward Low914.10.6564
Triple Number Windward/Leeward Medium656.00.9147
Triple Number Windward/Leeward High555.91.0793
Predominantly Upwind560.21.0711
Predominantly Downwind563.21.0653
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low699.20.8581
Triple Number AP Medium529.31.1335
Triple Number AP High465.71.2884
Triple Number Windward/Leeward Low957.70.6265
Triple Number Windward/Leeward Medium656.00.9147
Triple Number Windward/Leeward High555.91.0793
Single Number Predominant Upwind582.11.0308
Single Number Predominant Reaching532.01.1278
Single Number Predominant Downwind592.31.0130
Predominant Upwind - Low804.40.7459
Predominant Upwind - Low/Med612.80.9791
Predominant Upwind - Medium541.51.1081
Predominant Upwind - Med/High505.31.1875
Predominant Upwind - High489.41.2259
Predominant Downwind Low910.30.6592
Predominant Downwind Low/Med652.70.9192
Predominant Downwind Medium540.41.1103
Predominant Downwind Med/High470.31.2758
Predominant Downwind High433.51.3840
Predominant Reaching Low754.60.7951
Predominant Reaching Low/Med569.41.0538
Predominant Reaching Medium494.51.2132
Predominant Reaching Med/High449.81.3339
Predominant Reaching High425.21.4112
SA/DSPL Upwind26.39SA/DSPL Downwind26.39
Scoring OptionTODTOT
5-Band Windward/Leeward Low1078.20.5565
5-Band Windward/Leeward Low/Med772.80.7764
5-Band Windward/Leeward Medium642.90.9333
5-Band Windward/Leeward Med/High565.81.0605
5-Band Windward/Leeward High532.91.1259
Windward/Leeward 60-40 Low1055.60.5684
Windward/Leeward 60-40 Low/Med765.70.7836
Windward/Leeward 60-40 Medium646.30.9283
Windward/Leeward 60-40 Med/High578.71.0368
Windward/Leeward 60-40 High551.11.0888
5-Band AP Low788.50.7610
5-Band AP Low/Med605.20.9914
5-Band AP Medium521.11.1514
5-Band AP Med/High472.71.2693
5-Band AP High448.21.3387
5-Band SF Bay Tour - Low914.50.6561
5-Band SF Bay Tour - Low/Med732.60.8190
5-Band SF Bay Tour - Medium617.30.9720
5-Band SF Bay Tour - Med/High552.21.0865
5-Band SF Bay Tour - High523.41.1465
Chicago-Mac Upwind1.0000
Chicago-Mac All Purpose0.9911
Chicago-Mac Downwind0.9702
Bayview-Mac Cove Island0.7087
Bayview-Mac Shore0.7184
Harvest Moon Regatta462.71.2967
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance583.01.0291
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium529.31.1336
Triple Number Coastal/Long Distance High465.71.2884
Triple Number Windward/Leeward Low914.10.6564
Triple Number Windward/Leeward Medium656.00.9147
Triple Number Windward/Leeward High555.91.0793
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1592.81031.2761.0624.9547.8506.5475.5428.1409.2
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance583.01.0291
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium529.31.1336
Triple Number Coastal/Long Distance High465.71.2884
Triple Number Windward/Leeward Low914.10.6564
Triple Number Windward/Leeward Medium656.00.9147
Triple Number Windward/Leeward High555.91.0793
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1592.81031.2761.0624.9547.8506.5475.5428.1409.2
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance583.0
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1592.81031.2761.0624.9547.8506.5475.5428.1409.2
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium529.31.1336
Triple Number Coastal/Long Distance High465.71.2884
Triple Number Windward/Leeward Low914.10.6564
Triple Number Windward/Leeward Medium656.00.9147
Triple Number Windward/Leeward High555.91.0793
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating583.01.0291
FinRating, kevyt tuuli1062.50.9412
FinRating, kova tuuli450.71.1094
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium529.31.1336
Triple Number Coastal/Long Distance High465.71.2884
Triple Number Windward/Leeward Low914.10.6564
Triple Number Windward/Leeward Medium656.00.9147
Triple Number Windward/Leeward High555.91.0793
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.0291
Triple Number Coastal/Long Distance Low0.8581
Triple Number Coastal/Long Distance Medium1.1336
Triple Number Coastal/Long Distance High1.2884
Triple Number Windward/Leeward Low0.6564
Triple Number Windward/Leeward Medium0.9147
Triple Number Windward/Leeward High1.0793
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1592.81031.2761.0624.9547.8506.5475.5428.1409.2
For information
General Purpose Handicap (GPH)600.8
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance583.01.0291
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium529.31.1336
Triple Number Coastal/Long Distance High465.71.2884
Triple Number Windward/Leeward Low914.10.6564
Triple Number Windward/Leeward Medium656.00.9147
Triple Number Windward/Leeward High555.91.0793
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1592.81031.2761.0624.9547.8506.5475.5428.1409.2
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium529.31.1336
Triple Number Coastal/Long Distance High465.71.2884
Triple Number Windward/Leeward Low914.10.6564
Triple Number Windward/Leeward Medium656.00.9147
Triple Number Windward/Leeward High555.91.0793
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance583.01.0291
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium529.31.1336
Triple Number Coastal/Long Distance High465.71.2884
Triple Number Windward/Leeward Low914.10.6564
Triple Number Windward/Leeward Medium656.00.9147
Triple Number Windward/Leeward High555.91.0793
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1592.81031.2761.0624.9547.8506.5475.5428.1409.2
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance583.01.0291
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium529.31.1336
Triple Number Coastal/Long Distance High465.71.2884
Triple Number Windward/Leeward Low914.10.6564
Triple Number Windward/Leeward Medium656.00.9147
Triple Number Windward/Leeward High555.91.0793
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1592.81031.2761.0624.9547.8506.5475.5428.1409.2
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low699.2
Triple Number Coastal/Long Distance Medium529.3
Triple Number Coastal/Long Distance High465.7
Triple Number Windward/Leeward Low914.1
Triple Number Windward/Leeward Medium656.0
Triple Number Windward/Leeward High555.9
Predominantly Upwind560.2
Predominantly Downwind563.2
Predominantly Reaching527.3
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance583.01.0291
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium529.31.1336
Triple Number Coastal/Long Distance High465.71.2884
Triple Number Windward/Leeward Low914.10.6564
Triple Number Windward/Leeward Medium656.00.9147
Triple Number Windward/Leeward High555.91.0793
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1592.81031.2761.0624.9547.8506.5475.5428.1409.2
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8581
Triple Number Coastal/Long Distance Medium1.1336
Triple Number Coastal/Long Distance High1.2884
Triple Number Windward/Leeward Low0.6564
Triple Number Windward/Leeward Medium0.9147
Triple Number Windward/Leeward High1.0793
Coastal/Long Distance1.0291
Predominantly Upwind1.0711
Predominantly Downwind1.0653
For information
General Purpose Handicap (GPH)600.8
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.1268
Distanseseilas Trippeltall svak vind0.8581
Distanseseilas Trippeltall mellomvind1.1336
Distanseseilas Trippeltall sterk vind1.2884
Pølsebane Trippeltall svak vind0.6564
Pølsebane Trippeltall mellomvind0.9147
Pølsebane Trippeltall sterk vind1.0793
Motvind Singeltall1.0711
Medvind Singeltall1.0653
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium529.31.1336
Triple Number Coastal/Long Distance High465.71.2884
Triple Number Windward/Leeward Low914.10.6564
Triple Number Windward/Leeward Medium656.00.9147
Triple Number Windward/Leeward High555.91.0793
Coastal/Long Distance583.01.0291
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind560.21.0711
Predominantly Downwind563.21.0653
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore520.41.1529
Cape Doctor Coastal436.31.3751
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium529.31.1336
Triple Number Coastal/Long Distance High465.71.2884
Triple Number Windward/Leeward Low914.10.6564
Triple Number Windward/Leeward Medium656.00.9147
Triple Number Windward/Leeward High555.91.0793
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8581
Triple Number Coastal/Long Distance Medium1.1336
Triple Number Coastal/Long Distance High1.2884
Triple Number Windward/Leeward Low0.6564
Triple Number Windward/Leeward Medium0.9147
Triple Number Windward/Leeward High1.0793
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8581
Triple Number Coastal/Long Distance Medium1.1336
Triple Number Coastal/Long Distance High1.2884
Triple Number Windward/Leeward Low0.6564
Triple Number Windward/Leeward Medium0.9147
Triple Number Windward/Leeward High1.0793
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance583.01.0291
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium529.31.1336
Triple Number Coastal/Long Distance High465.71.2884
Triple Number Windward/Leeward Low914.10.6564
Triple Number Windward/Leeward Medium656.00.9147
Triple Number Windward/Leeward High555.91.0793
Predominantly Upwind560.21.0711
Predominantly Downwind563.21.0653
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1592.81031.2761.0624.9547.8506.5475.5428.1409.2
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance583.01.0291
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium529.31.1336
Triple Number Coastal/Long Distance High465.71.2884
Triple Number Windward/Leeward Low914.10.6564
Triple Number Windward/Leeward Medium656.00.9147
Triple Number Windward/Leeward High555.91.0793
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1592.81031.2761.0624.9547.8506.5475.5428.1409.2
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low699.20.8581
Triple Number AP Medium529.31.1335
Triple Number AP High465.71.2884
Triple Number Windward/Leeward Low957.70.6265
Triple Number Windward/Leeward Medium656.00.9147
Triple Number Windward/Leeward High555.91.0793
Single Number Predominant Upwind582.11.0308
Single Number Predominant Reaching532.01.1278
Single Number Predominant Downwind592.31.0130
Predominant Upwind - Low804.40.7459
Predominant Upwind - Low/Med612.80.9791
Predominant Upwind - Medium541.51.1081
Predominant Upwind - Med/High505.31.1875
Predominant Upwind - High489.41.2259
Predominant Downwind Low910.30.6592
Predominant Downwind Low/Med652.70.9192
Predominant Downwind Medium540.41.1103
Predominant Downwind Med/High470.31.2758
Predominant Downwind High433.51.3840
Predominant Reaching Low754.60.7951
Predominant Reaching Low/Med569.41.0538
Predominant Reaching Medium494.51.2132
Predominant Reaching Med/High449.81.3339
Predominant Reaching High425.21.4112
SA/DSPL Upwind26.39SA/DSPL Downwind26.39
Scoring OptionTODTOT
5-Band Windward/Leeward Low1078.20.5565
5-Band Windward/Leeward Low/Med772.80.7764
5-Band Windward/Leeward Medium642.90.9333
5-Band Windward/Leeward Med/High565.81.0605
5-Band Windward/Leeward High532.91.1259
Windward/Leeward 60-40 Low1055.60.5684
Windward/Leeward 60-40 Low/Med765.70.7836
Windward/Leeward 60-40 Medium646.30.9283
Windward/Leeward 60-40 Med/High578.71.0368
Windward/Leeward 60-40 High551.11.0888
5-Band AP Low788.50.7610
5-Band AP Low/Med605.20.9914
5-Band AP Medium521.11.1514
5-Band AP Med/High472.71.2693
5-Band AP High448.21.3387
5-Band SF Bay Tour - Low914.50.6561
5-Band SF Bay Tour - Low/Med732.60.8190
5-Band SF Bay Tour - Medium617.30.9720
5-Band SF Bay Tour - Med/High552.21.0865
5-Band SF Bay Tour - High523.41.1465
Chicago-Mac Upwind1.0000
Chicago-Mac All Purpose0.9911
Chicago-Mac Downwind0.9702
Bayview-Mac Cove Island0.7087
Bayview-Mac Shore0.7184
Harvest Moon Regatta462.71.2967
Non Spin/HSFClub Certificate2025
BarXNOR 38
Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassX-41 ODMeasurementHINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA12.350Max. Beam3.646Draft2.494Displacement6,792Wetted area30.71IMS L11.079LSM010.741Acc. length11.850Sink (kg/mm) 23.02
VCGD-0.149VCGM-0.165RM Rated (kg·m) 204.3Limit of positive stability(°) N/AStability IndexN/ADefault crew weight762Declared crew weightN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.400PBWPIPA0.0040
EDL1.884ST10.066ST20.180
ST30.180ST40.180ST50.315
RIG
Forestay tensionAftInner stayNone FittedMast materialCarbonSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P16.250IG17.035ISP18.200MDT10.136MDL10.254MDT20.123MDL20.203TL1.255MW0.254GO0.278
E5.500J4.914BAS1.879FSD0.036SFJ0.250SPL5.208WPLTPS0.000BD0.000MWT190.00MCG5.685
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.149Flotation Date01/01/2007
BALLAST
TANKS
INVENTORY
IdDescriptionWeight SailingLCGVCGGAIdDescriptionWeight SailingLCGVCGGAORC*Legacy Anchor*0.00   
INVENTORY
Fixed Ballast Total0
Total deductible
OTHER ITEMSIdKindDescriptionWeightLCGVCGORCAnchor*Legacy Anchor*250.00Total deductible250.00
Non Spin/HSFClub Certificate2025
BarXNOR 38
Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment0-2024060408190.201.081.923.364.4751.2304/06/2024
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment0-2024060408210.050.711.372.613.875.1416.88NoNo 44.0104/06/2024
CRUISER/RACER REQUIREMENTS*
Accommodation length11.8 mTable area0.55 m²Headroom1.80 mMinimum number of berths5Personal gear stowage0.20 m³Fresh water capacity145 lMinimum number of seats in cockpit5Food stowage0.30 m³Fuel capacity86 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.