Club Certificate2025
MarissaNOR 13872
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 Angles45.4°45.4°43.4°42.3°41.1°40.0°39.7°39.9°41.2°
Beat VMG2.102.903.554.024.384.624.724.754.63
52°3.324.525.416.026.416.656.786.856.82
60°3.564.805.696.266.616.836.977.087.09
75°3.714.965.856.446.787.027.207.457.53
90°3.735.106.136.757.107.337.487.697.93
110°3.795.206.246.857.237.577.888.408.74
120°3.675.046.086.747.157.507.858.559.33
135°3.254.535.586.386.897.247.588.309.27
150°2.683.844.875.746.466.917.257.918.66
Run VMG2.323.334.224.995.716.276.717.367.96
Gybe Angles144.6°144.6°147.8°153.4°159.4°165.5°172.7°177.7°177.2°
APH ToD:615.4CDL: 7.805APH ToT: 0.9749CertNo:20815
BOAT
ClassOceanis 31DesignerFinot-ConqBuilderBeneteauAge date01/2008Series date01/2008Offset fileOceanis_31.OFFData file20815
HULL
Length Overall9.540Maximum Beam3.234Draft1.504Displacement4,487DLR6.2784IMS DivisionCruiser/RacerDynamic Allowance0.360%Age Allowance0.487%
PROPELLER
InstallationShaft non exposedTypeFolding 3 bladesDiameter0.390m
CREW
Maximum weight587(default)Minimum weight457 ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail24.2924.70Headsail Luffed23.7123.71Headsail FlyingSymmetric68.5968.59Asymmetric65.2165.21 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail7.44Storm Jib7.05Heavy Weather Jib19.03
SAIL LIMITS
Headsails5Spinnakers4
✱ Asymmetric may be tacked on the pole
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.
ORC Ref  03440003N9BIssued on 07/04/2025Valid until 31/03/2026
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
MarissaNOR 13872
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 VMG1717.61239.31014.4894.9821.5778.7762.9758.4776.7
52°1084.2796.3664.9598.3561.8541.5531.1525.6528.2
60°1011.4750.0633.1575.4544.8526.9516.1508.5508.1
75°971.5725.1615.5559.3530.8513.1500.0483.5477.9
90°965.1705.2587.3533.5507.2491.1481.5468.0454.1
110°949.8692.9576.7525.3497.6475.7457.0428.4412.1
120°979.9713.9591.9533.8503.4479.8458.6420.8385.8
135°1107.1794.2644.7564.2522.9497.0474.7433.5388.2
150°1342.1937.1739.1626.7557.6520.9496.5455.4415.7
Run VMG1549.61082.0853.4721.2631.0574.0536.4489.3452.3
Selected Courses
Windward / Leeward1632.91160.7933.9808.0726.2676.3649.6623.9614.5
All purpose1233.4889.1727.1641.8591.4560.9542.7520.7507.7
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward762.30.7871
All purpose615.40.9749
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low808.10.7425
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High539.01.1132
Triple Number Windward/Leeward Low1047.30.5729
Triple Number Windward/Leeward Medium758.30.7912
Triple Number Windward/Leeward High646.70.9278
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance672.00.8929
Triple Number Coastal/Long Distance Low808.10.7425
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High539.01.1132
Triple Number Windward/Leeward Low1047.30.5729
Triple Number Windward/Leeward Medium758.30.7912
Triple Number Windward/Leeward High646.70.9278
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1722.61152.8874.7725.1632.7582.1547.9496.2478.8
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6698
Downwind "popa"0.8594
70% up, 30% down "Ilhabela"0.7173
30% up, 70% down "Ilhabela-inverso"0.7921
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low808.10.7425
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High539.01.1132
Triple Number Windward/Leeward Low1047.30.5729
Triple Number Windward/Leeward Medium758.30.7912
Triple Number Windward/Leeward High646.70.9278
Predominantly Upwind673.60.8908
Predominantly Downwind618.70.9698
Custom scoring options for Canada
Scoring OptionTODTOT
TriNum AP Low808.10.7425
TriNum AP Med612.00.9804
TriNum AP High539.01.1132
TriNum W/L Low1093.30.5488
TriNum W/L Med758.30.7912
TriNum W/L Hig646.70.9278
Predom. Upwind702.60.8540
Predom. Reaching609.10.9850
Predom. Downwind646.00.9288
Predom. Up Low995.20.6029
Predom. Up L/M751.00.7989
Predom. Up Med649.30.9241
Predom. Up M/H596.21.0064
Predom. Up High580.21.0341
Predom. Dn Low956.50.6273
Predom. Dn L/M704.60.8515
Predom. Dn Med594.61.0091
Predom. Dn M/H528.21.1360
Predom. Dn High493.41.2160
Predom. Rc Low861.20.6967
Predom. Rc L/M650.70.9220
Predom. Rc Med565.41.0612
Predom. Rc M/H517.91.1586
Predom. Rc High494.11.2143
SA/DSPL Upwind17.56SA/DSPL Downwind33.97
Scoring OptionTODTOT
5B W/L Low1222.20.4909
5B W/L L/M892.30.6724
5B W/L Med742.50.8081
5B W/L M/H656.20.9143
5B W/L High626.70.9574
W/L 60-40 Low1238.30.4845
W/L 60-40 L/M909.20.6599
W/L 60-40 Med761.50.7879
W/L 60-40 M/H678.90.8838
W/L 60-40 High653.80.9176
5B AP Low886.80.6766
5B AP L/M700.90.8561
5B AP Med601.90.9968
5B AP M/H546.11.0986
5B AP High522.31.1488
5B SF Bay Low1056.90.5677
5B SF Bay L/M855.40.7014
5B SF Bay Med718.90.8346
5B SF Bay M/H642.30.9342
5B SF Bay High615.30.9751
Chicago-Mac Upwind0.8231
Chicago-Mac All Purpose0.8608
Chicago-Mac Downwind0.8934
BayMac Cove Island965.40.6215
BayMac Shore959.30.6255
Harvest Moon527.01.1385
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance672.00.8929
Triple Number Coastal/Long Distance Low808.10.7425
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High539.01.1132
Triple Number Windward/Leeward Low1047.30.5729
Triple Number Windward/Leeward Medium758.30.7912
Triple Number Windward/Leeward High646.70.9278
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1722.61152.8874.7725.1632.7582.1547.9496.2478.8
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance672.00.8929
Triple Number Coastal/Long Distance Low808.10.7425
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High539.01.1132
Triple Number Windward/Leeward Low1047.30.5729
Triple Number Windward/Leeward Medium758.30.7912
Triple Number Windward/Leeward High646.70.9278
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1722.61152.8874.7725.1632.7582.1547.9496.2478.8
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance672.0
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1722.61152.8874.7725.1632.7582.1547.9496.2478.8
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low808.10.7425
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High539.01.1132
Triple Number Windward/Leeward Low1047.30.5729
Triple Number Windward/Leeward Medium758.30.7912
Triple Number Windward/Leeward High646.70.9278
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating672.00.8929
FinRating, kevyt tuuli1195.80.8363
FinRating, kova tuuli525.00.9524
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low808.10.7425
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High539.01.1132
Triple Number Windward/Leeward Low1047.30.5729
Triple Number Windward/Leeward Medium758.30.7912
Triple Number Windward/Leeward High646.70.9278
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8929
Triple Number Coastal/Long Distance Low0.7425
Triple Number Coastal/Long Distance Medium0.9806
Triple Number Coastal/Long Distance High1.1132
Triple Number Windward/Leeward Low0.5729
Triple Number Windward/Leeward Medium0.7912
Triple Number Windward/Leeward High0.9278
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1722.61152.8874.7725.1632.7582.1547.9496.2478.8
For information
General Purpose Handicap (GPH)694.4
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance672.00.8929
Triple Number Coastal/Long Distance Low808.10.7425
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High539.01.1132
Triple Number Windward/Leeward Low1047.30.5729
Triple Number Windward/Leeward Medium758.30.7912
Triple Number Windward/Leeward High646.70.9278
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1722.61152.8874.7725.1632.7582.1547.9496.2478.8
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low808.10.7425
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High539.01.1132
Triple Number Windward/Leeward Low1047.30.5729
Triple Number Windward/Leeward Medium758.30.7912
Triple Number Windward/Leeward High646.70.9278
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance672.00.8929
Triple Number Coastal/Long Distance Low808.10.7425
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High539.01.1132
Triple Number Windward/Leeward Low1047.30.5729
Triple Number Windward/Leeward Medium758.30.7912
Triple Number Windward/Leeward High646.70.9278
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1722.61152.8874.7725.1632.7582.1547.9496.2478.8
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance672.00.8929
Triple Number Coastal/Long Distance Low808.10.7425
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High539.01.1132
Triple Number Windward/Leeward Low1047.30.5729
Triple Number Windward/Leeward Medium758.30.7912
Triple Number Windward/Leeward High646.70.9278
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1722.61152.8874.7725.1632.7582.1547.9496.2478.8
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low808.1
Triple Number Coastal/Long Distance Medium611.9
Triple Number Coastal/Long Distance High539.0
Triple Number Windward/Leeward Low1047.3
Triple Number Windward/Leeward Medium758.3
Triple Number Windward/Leeward High646.7
Predominantly Upwind673.6
Predominantly Downwind618.7
Predominantly Reaching593.4
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance672.00.8929
Triple Number Coastal/Long Distance Low808.10.7425
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High539.01.1132
Triple Number Windward/Leeward Low1047.30.5729
Triple Number Windward/Leeward Medium758.30.7912
Triple Number Windward/Leeward High646.70.9278
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1722.61152.8874.7725.1632.7582.1547.9496.2478.8
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7425
Triple Number Coastal/Long Distance Medium0.9806
Triple Number Coastal/Long Distance High1.1132
Triple Number Windward/Leeward Low0.5729
Triple Number Windward/Leeward Medium0.7912
Triple Number Windward/Leeward High0.9278
Coastal/Long Distance0.8929
Predominantly Upwind0.8908
Predominantly Downwind0.9698
For information
General Purpose Handicap (GPH)694.4
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9749
Distanseseilas Trippeltall svak vind0.7425
Distanseseilas Trippeltall mellomvind0.9806
Distanseseilas Trippeltall sterk vind1.1132
Pølsebane Trippeltall svak vind0.5729
Pølsebane Trippeltall mellomvind0.7912
Pølsebane Trippeltall sterk vind0.9278
Motvind Singeltall0.8908
Medvind Singeltall0.9698
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low808.10.7425
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High539.01.1132
Triple Number Windward/Leeward Low1047.30.5729
Triple Number Windward/Leeward Medium758.30.7912
Triple Number Windward/Leeward High646.70.9278
Coastal/Long Distance672.00.8929
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind673.60.8908
Predominantly Downwind618.70.9698
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore617.30.9720
Cape Doctor Coastal511.61.1727
Triple Number Coastal/Long Distance Low808.10.7425
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High539.01.1132
Triple Number Windward/Leeward Low1047.30.5729
Triple Number Windward/Leeward Medium758.30.7912
Triple Number Windward/Leeward High646.70.9278
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7425
Triple Number Coastal/Long Distance Medium0.9806
Triple Number Coastal/Long Distance High1.1132
Triple Number Windward/Leeward Low0.5729
Triple Number Windward/Leeward Medium0.7912
Triple Number Windward/Leeward High0.9278
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7425
Triple Number Coastal/Long Distance Medium0.9806
Triple Number Coastal/Long Distance High1.1132
Triple Number Windward/Leeward Low0.5729
Triple Number Windward/Leeward Medium0.7912
Triple Number Windward/Leeward High0.9278
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance672.00.8929
Triple Number Coastal/Long Distance Low808.10.7425
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High539.01.1132
Triple Number Windward/Leeward Low1047.30.5729
Triple Number Windward/Leeward Medium758.30.7912
Triple Number Windward/Leeward High646.70.9278
Predominantly Upwind673.60.8908
Predominantly Downwind618.70.9698
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1722.61152.8874.7725.1632.7582.1547.9496.2478.8
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance672.00.8929
Triple Number Coastal/Long Distance Low808.10.7425
Triple Number Coastal/Long Distance Medium611.90.9806
Triple Number Coastal/Long Distance High539.01.1132
Triple Number Windward/Leeward Low1047.30.5729
Triple Number Windward/Leeward Medium758.30.7912
Triple Number Windward/Leeward High646.70.9278
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1722.61152.8874.7725.1632.7582.1547.9496.2478.8
Custom scoring options for United States of America
Scoring OptionTODTOT
TriNum AP Low808.10.7425
TriNum AP Med612.00.9804
TriNum AP High539.01.1132
TriNum W/L Low1093.30.5488
TriNum W/L Med758.30.7912
TriNum W/L Hig646.70.9278
Predom. Upwind702.60.8540
Predom. Reaching609.10.9850
Predom. Downwind646.00.9288
Predom. Up Low995.20.6029
Predom. Up L/M751.00.7989
Predom. Up Med649.30.9241
Predom. Up M/H596.21.0064
Predom. Up High580.21.0341
Predom. Dn Low956.50.6273
Predom. Dn L/M704.60.8515
Predom. Dn Med594.61.0091
Predom. Dn M/H528.21.1360
Predom. Dn High493.41.2160
Predom. Rc Low861.20.6967
Predom. Rc L/M650.70.9220
Predom. Rc Med565.41.0612
Predom. Rc M/H517.91.1586
Predom. Rc High494.11.2143
SA/DSPL Upwind17.56SA/DSPL Downwind33.97
Scoring OptionTODTOT
5B W/L Low1222.20.4909
5B W/L L/M892.30.6724
5B W/L Med742.50.8081
5B W/L M/H656.20.9143
5B W/L High626.70.9574
W/L 60-40 Low1238.30.4845
W/L 60-40 L/M909.20.6599
W/L 60-40 Med761.50.7879
W/L 60-40 M/H678.90.8838
W/L 60-40 High653.80.9176
5B AP Low886.80.6766
5B AP L/M700.90.8561
5B AP Med601.90.9968
5B AP M/H546.11.0986
5B AP High522.31.1488
5B SF Bay Low1056.90.5677
5B SF Bay L/M855.40.7014
5B SF Bay Med718.90.8346
5B SF Bay M/H642.30.9342
5B SF Bay High615.30.9751
Chicago-Mac Upwind0.8231
Chicago-Mac All Purpose0.8608
Chicago-Mac Downwind0.8934
BayMac Cove Island965.40.6215
BayMac Shore959.30.6255
Harvest Moon527.01.1385
ORC Ref  03440003N9BIssued on 07/04/2025Valid until 31/03/2026
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
MarissaNOR 13872
Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassOceanis 31MeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA9.540Max. Beam3.234Draft1.504Displacement4,487Wetted area21.04IMS L9.001LSM08.940Acc. length9.540Sink (kg/mm) 16.41
VCGD0.180VCGM0.128RM Rated (kg·m) 86.2Limit of positive stability(°) N/AStability IndexN/ADefault crew weight587Declared crew weightN/A
PROPELLER
Propeller TypeFolding 3 blades
InstallationShaft non exposedTwin screwNoHydro generatorNo
PRD0.390PBWPIPA0.0005
PSDPHDPHL
PSAESL
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders1Rotating mastNo
P10.900IG11.870ISP11.870MDT10.110MDL10.180MDT20.000MDL20.000TLNo TaperMW0.000GO0.000
E3.900J3.670BAS1.720FSDFoilSFJ0.000SPL4.080WPLTPS4.000BD0.000MWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered0.180Flotation Date01/01/2015
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03440003N9BIssued on 07/04/2025Valid until 31/03/2026
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
MarissaNOR 13872
Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment382-2009090318400.050.001.272.323.1924.2903/09/2009
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment383-2011050717150.000.000.000.000.004.1311.28NoNo 23.7107/05/2011Målingen foregikk tirsdag 5. juli 2011382-2009090318300.000.000.000.000.004.0411.28NoNo 23.2003/09/2009
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment469-20240212132411.6711.7011.696.957.4268.5912/02/2024REcut 2024
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment383-20110705173011.3412.7912.076.466.5998%65.2105/07/2011382-20090904184710.0011.9710.996.755.45124%59.4104/09/2009
CRUISER/RACER REQUIREMENTS*
Accommodation length9.5 mTable area0.44 m²Headroom1.67 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity70 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity40 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  03440003N9BIssued on 07/04/2025Valid until 31/03/2026
VPP ver: 2025 1.01 | © ORC | www.orc.org