The certificate number is assigned by the Rating Office issuing the certificate.

Based on: FULL MEASUREMENT (complete individual measurement)
ONE DESIGN: (one design certificate)
NOT VALID AFTER: Expiration date of the certificate
GPH: General Purpose Handicap in seconds/mil: it is the average between the values of Cirular Random 8 and 12 knots.

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- Name
- Sail number
- Production model
- LOA = Overall Length      Maximum Beam (MB)
- Designer
- Builder
- Rig (FRACTIONAL / MASTHEAD) / KETCH / YAWL
- Keel (FIXED - WITH WINGLEST - CENTERBOARD)
- Propeller instalation (EXPOSED - STRUT DRIVE - IN APERTURE)
- Propeller (SOLID - 2/3 BLADES - FEATHERING - FOLDING)
- Spinnaker (SYMMETRIC, ASYMMETRIC: ASYM C-L: No pole, ASYM Pole - with pole)
- Hull construction (SOLID - CORED - LIGHT - CARBON)
- Rudder construction (STANDARD - CARBON)
- Forestay tension (ADJUSTABLE AFT - FORWARD - FIXED - AFT & FORWARD)
- Boom Material (HEAVY = Standard - LIGHT = Carbon or Kevlar)
- Number of spreaders
- Inner Forestay (ADJUSTABLE - FIXED - NONE)
- Number of Running Backstays
- Jumper stays (YES - NO)
- Date: age (date of the first measurements)
- Series: date of the first sample of the series

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- IMS AMENDED TO: date of IMS program release used
- Stamp of the Rating Office issuing the certificate
- Issue Data - Rating Office Address
- Measurement Date
- Revalidating Authority
- Measurer name(s)
- "I CERTIFY THAT .... " - OWNER: here the owner has to sign to complete the validity of
   his IMS certificate
- Address line 3 is used for Yacht Club in some countries

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- Limit of positive stability: MEETS REQ = Conforms
- Minimum displacement
- Maximum crew weight whilst racing
- Stability index
- Heavy items correcction
- Flotation date
- Accomodation length (AL) - Reference Length for the Regulations
- Regulations Division C/R - Cruiser/Racer, RACE = Racing
- DA = Dynamic Allowance (percentage)
- Plan Approval (YES - NO)
- Anchors weight and position
- Applied Age Allowance

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- Processing Date-time
- Certificate Number + filename - date - time
- Offset filename - date - time

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ECM: centerboard extension below hull or keel
ECE: centerboard vertical extension
WCBA: centerboard #1 weight
WCBB: centerboard #2 weight
CBDA: centerboard #1 center of gravity vertical displacement
CBRC: root chord length
CBMC: mid chord length
CBTC: 3/4 span chord length
KCDA: centerboard draft correction
KEDA: wing keel draft correction

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PIPA: propeller Instalation Projected Area
ESL: prop shaft length
PSA: prop shaft angle with hull
PRD: prop diameter
PBW: prop blade width
PHD: prop hub diameter
EDL: distance between keel trailing edge and prop centre (strut drive)
PSD: prop shaft diameter
PHL: prop hub length
ST1: shaft bracket thickness
ST2: shaft bracket length
ST3: shaft bracket length at hull
ST4: maximum strut diameter
ST5: distance from hull (perpendicular to shaft) of prop center

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SG: water density, measured at the time of flotation
FF: freeboard forward in salt water
FA: freeboard aft in salt water
FFM: freeboard forward measured
FAM: freeboard aft measured
FFPS: standard freeboard forward
AFPS: standard freeboard aft
SFFP: distance from bow to forward freeboard station
SAFP: distance from bow to aft freeboard station
FGO: distance from bow to forward freeboard station (id different from SFFP)
LBG: distance between the freeboard stations (if different from SAFP - SFFP)

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PLM: measured manometer length
PL: corrected manometer length
GSA: sectional area, instrument pipe (square mm)
RSA: sectional area, instrument reservoir (square mm)
WD: distance between the inclining weights suspension points (m)
W1-W4: weight for each incling reading
PD1-PD4: inclining angle diplacements (mm)
RM: measured righting moment (per degree)
RMC: corrected righting momment (per degree)
RM 2-90: righting moment (per degree), calculated
CRA: crew righting arm

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DHK0/DHKA: maximum draft (measurement trim/sailing trim)
LSM0/LSM1: integrated second moment length
DSPM/DSPS: displacement in standard salt water (measurement/sailing trim)
WSM/WSS: wetted area (measurement/sailing trim)
VCGD: center of gravity height above offsets datum
VCGM: center of gravity height above measurement trim flotation plane
B: integrated beam, attenuated with depth
AMS1: Maximum immersed sectional area
BTR: beam/draft ratio
D: Effective Draft
LSM2-LSM3: LSM at 2 and 25 degrees heel
LSM4-L: LSM "Sunk" MS averaged length (L)
TRIM: moment to change trim 1 mm
SINK: Weight to change freeboards 1 mm

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IG: height above sheerline of the headstay attachement
MW: length of the mast prohile at the hounds
GO: distance from the mast aft face to the headstay attachment
ISP: height above sheerline of the highest spinnaker halyard
IM: calculated height of the foretriangle
HBI: freeboard at the base of "I"
SFJ: distance from the foremost point in the bow to the intersection of the headstay with the hull centerline
SPL: maximum spinnaker pole length
SL: maximum spinnaker measured length
SMW: maximum spinnaker measured width
SF: maximum spinnaker foot
J: distance from the forward face of the mast to the intersection of the headstay with the hull centerline
FSP: transverse measurement of the headstay groove foil (doubled)
LPG: maximum perpendicular of jib
LP: LPG + FSP
JL: maximum jib luff
JH: jib head
JGT: jib width at 7/8 leech
JGU: jib width at 3/4 leech
JGM: jib width at 1/2 leech
JGL: jib width at 1/4 leech

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- Sail limitations: Number of sails allowed on board while racing according to the IMS Regulations
- Max. storm sails areas according to the Offshore Special Regulations
- Default values for: crew weight, spinnaker luff and spinnaker foot
- List of heavy items not located in the central zone (35 - 60% LOA) eligible for Heavy items pitch gyradius credit
 

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