Including US SAILING Prescriptions
Extract for Race Category 4 Monohulls
© ORC Ltd. 2002, all amendments from 2003 © International Sailing Federation, (IOM) Ltd.
Reprinted with permission of ISAF and ORC Ltd. by US Sailing Association
US Version 2 - 2012
Because this is an extract not all paragraph numbers will be present
US SAILING extract files are available for individual categories and boat types (monohulls and multihulls) at
ISAF and US Sailing Guidance notes and recommendations are in italics
US SAILING prescriptions are printed in bold, italic letters
Significant Changes in 2012 have "(new in 2012)" at the end of each new/changed paragraph/cell
The use of the masculine gender shall be taken to mean either gender
1.01Purpose and Use**
1.01.1It is the purpose of these Special Regulations to establish uniform minimum equipment, accommodation and training standards for monohull and multihull yachts racing offshore. A Proa is excluded from these regulations. **
1.01.2These Special Regulations do not replace, but rather supplement, the requirements of governmental authority, the Racing Rules and the rules of Class Associations and Rating Systems. The attention of persons in charge is called to restrictions in the Rules on the location and movement of equipment.**
1.01.3These Special Regulations, adopted internationally, are strongly recommended for use by all organizers of offshore races. Race Committees may select the category deemed most suitable for the type of race to be sailed. 
1.02Responsibility of Person in Charge**
1.02.1The safety of a yacht and her crew is the sole and inescapable responsibility of the person in charge who must do his best to ensure that the yacht is fully found, thoroughly seaworthy and manned by an experienced crew who have undergone appropriate training and are physically fit to face bad weather. He must be satisfied as to the soundness of hull, spars, rigging, sails and all gear. He must ensure that all safety equipment is properly maintained and stowed and that the crew know where it is kept and how it is to be used. He shall also nominate a person to take over the responsibilities of the Person in Charge in the event of his incapacitation. (new in 2012)**
1.02.2Neither the establishment of these Special Regulations, their use by race organizers, nor the inspection of a yacht under these Special Regulations in any way limits or reduces the complete and unlimited responsibility of the person in charge.**
1.02.3Decision to race -The responsibility for a yacht's decision to participate in a race or to continue racing is hers alone - RRS Fundamental Rule 4. 
1.03Definitions, Abbreviations, Word Usage**
1.03.1Definitions of Terms used in this document 
Age Date Month/year of first launch
AIS Automatic Identification Systems
CEN Comité Européen de Normalisation
CPR Cardio-Pulmonary Resuscitation
Coaming includes the transverse after limit of the cockpit over which water would run in the event that when the yacht is floating level the cockpit is flooded or filled to overflowing.
DSC Digital Selective Calling
EN European Norm
EPFS Electronic Position-Fixing System
EPIRB Emergency Position-Indicating Radio Beacon
FA Station The transverse station at which the upper corner of the transom meets the sheerline.
Foul-Weather Suit A foul weather suit is clothing designed to keep the wearer dry and maybe either a jacket and trousers worn together, or a single garment comprising jacket and trousers.
GMDSS Global Maritime Distress & Safety System
GNSS Global Navigation Satellite System
GPIRB EPIRB, with integral GPS position-fixing
ITU International Telecommunications Union
GPS Global Positioning System
Hatch The term hatch includes the entire hatch assembly and also the lid or cover as part of that assembly (the part itself may be described as a hatch).
INMARSAT This is Inmarsat Global Limited, the private company that provides GMDSS satellite distress and safety communications, plus general communications via voice, fax and data
IMO International Maritime Organisation
IMSO The International Mobile Satellite Organisation, the independent, intergovernmental organisation that oversees Inmarsat’s performance of its Public Service Obligations for the GMDSS and reports on these to IMO
ISAF International Sailing Federation.
ISO International Standard or International Organization for Standardization.
Lifeline rope or wire line rigged as guardrail / guardline around the deck
LOA Length overall not including pulpits, bowsprits, boomkins etc.
LWL (Length of) loaded waterline
Monohull Yacht in which the hull depth in any section does not decrease towards the centre-line.
Moveable Ballast Lead or other material including water which has no practical function in the boat other than to increase weight and/or to influence stability and/or trim and which may be moved transversely but not varied in weight while a boat is racing.
ORC Offshore Racing Congress (formerly Offshore Racing Council)
OSR Offshore Special Regulation(s)
Permanently Installed Means the item is effectively built-in by eg bolting, welding, glassing etc. and may not be removed for or during racing.
PLB Personal Locator Beacon
Proa Asymmetric Catamaran
RRS ISAF - Racing Rules of Sailing
SAR Search and Rescue
SART Search and Rescue Transponder
Series Date Month & Year of first launch of the first yacht of the production series
SOLAS Safety of Life at Sea Convention
Safety Line A tether used to connect a safety harness to a strong point
Securely Fastened Held strongly in place by a method (eg rope lashings, wing-nuts) which will safely retain the fastened object in severe conditions including a 180 degree capsize and allows for the item to be removed and replaced during racing
Static Ballast Lead or other material including water which has no practical function in the boat other than to increase weight and/or to influence stability and/or trim and which may not be moved or varied in weight while a boat is racing.
Static Safety Line A safety line (usually shorter than a safety line carried with a harness) kept clipped on at a work-station
Variable Ballast Water carried for the sole purpose of influencing stability and/or trim and which may be varied in weight and/or moved while a boat is racing.
1.03.2The words "shall" and "must" are mandatory, and "should" and "may" are permissive.**
The word "yacht" shall be taken as fully interchangeable with the word "boat".
2.01Categories of Events**
 In many types of race, ranging from trans-oceanic sailed under adverse conditions to short-course day races sailed in protected waters, six categories are established, to provide for differences in the minimum standards of safety and accommodation required for such varying circumstances: 
2.01.5Category 4MoMu4
 Short races, close to shore in relatively warm or protected waters normally held in daylight. 
 A yacht may be inspected at any time. If she does not comply with these Special Regulations her entry may be rejected, or she will be liable to disqualification or such other penalty as may be prescribed by the national authority or the race organizers. 
2.03General Requirements 
2.03.1All equipment required by Special Regulations shall:-**
a)function properly**
b)be regularly checked, cleaned and serviced**
c)when not in use be stowed in conditions in which deterioration is minimised**
d)be readily accessible**
e)be of a type, size and capacity suitable and adequate for the intended use and size of the yacht. 
2.03.2Heavy items:**
a)ballast, ballast tanks and associated equipment shall be permanently installed**
b)heavy movable items including e.g. batteries, stoves, gas bottles, tanks, toolboxes and anchors and chain shall be securely fastened**
c)heavy items for which fixing is not specified in Special Regulations shall be permanently installed or securely fastened, as appropriate**
2.03.3When to show navigation lights**
a)navigation lights (OSR 3.27) shall be shown as required by the International Regulations for Preventing Collision at Sea, (Part C and Technical Annex 1). All yachts shall exhibit sidelights and a sternlight at the required times. 
3.01Strength of Build, Ballast and Rig**
 Yachts shall be strongly built, watertight and, particularly with regard to hulls, decks and cabin trunks capable of withstanding solid water and knockdowns. They must be properly rigged and ballasted, be fully seaworthy and must meet the standards set forth herein. Shrouds shall never be disconnected. 
3.02 Watertight Integrity of a Hull**
3.02.1A hull, including, deck, coach roof, windows, hatches and all other parts, shall form an integral, essentially watertight unit and any openings in it shall be capable of being immediately secured to maintain this integrity. **
3.02.2Centreboard and daggerboard trunks and the like shall not open into the interior of a hull except via a watertight inspection/maintenance hatch of which the opening shall be entirely above the waterline of the yacht floating level in normal trim.**
3.02.3A canting keel pivot shall be completely contained within a watertight enclosure which shall comply with OSR 3.02.2. Access points in the watertight enclosure for control and actuation systems or any other purpose shall comply with OSR 3.02.1.**
 * or as from time to time specified by ISAF Mo0,1,2,3,4
3.04Stability - Monohulls 
a)When there is a moveable or variable ballast system, written instructions on how to right the boat after a capsize shall be prominently and clearly displayed. All persons on board shall have a thorough knowledge of the righting proceduresMo0,1,2,3,4
3.04.2A yacht shall be designed and built to resist capsize.Mo0,1,2,3,4
3.04.3A race organizer should require compliance with a minimum stability or stability/buoyancy index. Attention is drawn to the stability index in the ORC Rules and Regulations.Mo0,1,2,3,4
3.04.4ISO 12217-2 may be used as a guide to general suitability for competition in Special Regulations race categories as follows:extract file only Cat 4
ISO Category A B C
OSR Category 1-2 3 4
3.04.5Use of the ISO or any other index does not guarantee total safety or total freedom of risk from capsize or sinking. Mo0,1,2,3,4
3.04.6For boats with moveable or variable ballast the method in OSR 3.04.4 shall apply plus the relevant additional requirement of OSR Appendix K.Mo0,1,2,3,4
3.05.3A yacht shall be designed and built to resist capsize.Mo0,1,2,3,4
3.06Exits - MonohullsMo0,1,2,3,4
3.06.1Yachts of LOA of 8.5 m (28 ft) and over with age or series date after January 1995 and after shall have at least two exits. At least one exit shall be located forward of the foremost mast except where structural features prevent its installation.Mo0,1,2,3,4
3.06.2Yachts first launched on or after January 2014 have a hatch with the following minimum clear openings in compliance with ISO 9094: (new in 2012) 
  - Circular shape: diameter 450mm; (new in 2012) 
  -  Any other shape: minimum dimension of 380mm and minimum area of 0.18m2. The dimension must be large enough to allow for a 380mm diameter circle to be inscribed. (new in 2012) 
 The measurement of the minimum clear opening is illustrated in Figure 1.(new in 2012) 
3.08Hatches & Companionways**
3.08.1No hatch forward of the maximum beam station, other than a hatch in the side of a coachroof, shall open in such a way that the lid or cover moves into the open position towards the interior of the hull (excepting ports having an area of less than 0.071m2 (110 sq in)).**
3.08.2A hatch fitted forward of the maximum beam station, located on the side of the coachroof, opening into the interior of the boat ,and of area greater than 0.071m2 shall comply with ISO12216 design category A and and be clearly labelled and used in accordance with the following instruction: “NOT TO BE OPENED AT SEA” Attention is drawn to SR 3.02.1  
3.08.3A hatch shall be: Mo0,1,2,3,4
a)so arranged as to be above the water when the hull is heeled 90 degrees. Hatches over lockers that open to the interior of the vessel shall be included in this requirement. A yacht may have a maximum of four (two on each side of centerline) hatches that do not conform to this requirement, provided that the opening of each is less than 0.071 sq m (110 sq in). Effective for boats of a series begun after January 1, 2009, a written statement signed by the designer or other person who performed the downflooding analysis shall be carried on board. For purposes of this rule the vessel’s displacement condition for the analysis shall be the Light Craft Condition LCC (in conformity with 6.3 of the EN ISO 8666 standard and 3.5.1 of the EN ISO12217-2 standard). **
b)permanently attached **
c)capable of being firmly shut immediately and remaining firmly shut in a 180 degree capsize (inversion) 
3.08.4A companionway hatch shall: **
a)be fitted with a strong securing arrangement which shall be operable from the exterior and interior including when the yacht is inverted**
b)have any blocking devices:**
icapable of being retained in position with the hatch open or shut **
iiwhether or not in position in the hatchway, secured to the yacht (e.g. by lanyard) for the duration of the race, to prevent their being lost overboard**
iiipermit exit in the event of inversionMo0,1,2,3,4
3.08.5If the companionway extends below the local sheerline and the boat has a cockpit opening aft to the sea the boat shall comply with one of the following:Mo0,1,2,3,4
a)the companionway sill shall not extend below the local sheerline. OrMo0,1,2,3,4
b)be in full compliance with all aspects of ISO 11812 to design category AMo0,1,2,3,4
iiA companionway hatch shall be in compliance with ISO 11812 – Watertight cockpits and quick-draining cockpits to design category B 
3.09Cockpits - Attention is Drawn to ISO 11812**
3.09.1Cockpits shall be structurally strong, self-draining quickly by gravity at all angles of heel and permanently incorporated as an integral part of the hull. **
3.09.2Cockpits must be essentially watertight, that is, all openings to the hull must be capable of being strongly and rigidly secured**
3.09.3A bilge pump outlet pipe shall not be connected to a cockpit drain . See OSR 3.09.8 for cockpit drain minimum sizes **
3.09.4A cockpit sole shall be at least 2% LWL above LWL (or in IMS yachts first launched before 1/03, at least 2% L above LWL)**
3.09.5A bow, lateral, central or stern well shall be considered a cockpit for the purposes of OSR 3.09**
3.09.6In cockpits opening aft to the sea structural openings aft shall be not less in area than 50% maximum cockpit depth x maximum cockpit width.
3.09.7Cockpit Volume 
before April 1992 the total volume of all cockpits below lowest coamings shall not exceed 6% (LWL x maximum beam x freeboard abreast the cockpit). MoMu0,1
before April 1992 the total volume of all cockpits below lowest coamings shall not exceed 9% (LWL x maximum beam x freeboard abreast the cockpit). MoMu2,3,4
April 1992 and after as above for the appropriate category except that "lowest coamings" shall not include any aft of the FA station and no extension of a cockpit aft of the working deck shall be included in calculation of cockpit volume **
Note IMS measured boats may instead of the terms LWL, maximum beam, freeboard abreast the cockpit, use the IMS terms L, B and FA. **
 the total volume of all cockpits below lowest coamings shall not exceed 6% (LWL x maximum beam x freeboard abreast the cockpit).Extract File Only MoMu2,3,4
 the total volume of all cockpits below lowest coamings shall not exceed 9% (LWL x maximum beam x freeboard abreast the cockpit). 
ii)earliest of age or series date April 1992 and afterExtract File Only **
 as above for the appropriate category except that "lowest coamings" shall not include any aft of the FA station and no extension of a cockpit aft of the working deck shall be included in calculation of cockpit volumeExtract File Only **
 IMS-rated boats may instead of the terms LWL, maximum beam, freeboard abreast the cockpit, use the IMS terms L, B and FA. 
3.09.8Cockpit Drains  
 See OSR 3.09.1. Cockpit drain cross section area (after allowance for screens if fitted) shall be:- 
a)in yachts with earliest of age or series date before 1/72 or in any yacht under 8.5m (28ft) LOA - at least that of 2 x 25mm diameter (one inch) unobstructed openings or equivalent**
b)in yachts with earliest of age or series date 1/72 and later - at least that of 4 x 20mm diameter (3/4 inch) unobstructed openings or equivalent**
 US SAILING prescribes that cockpit drains shall be accessible for cleaning.**
3.10Sea Cocks or Valves 
 Sea cocks or valves shall be permanently installed on all through-hull openings below the waterline except integral deck scuppers, speed indicators, depth finders and the like, however a means of closing such openings shall be provided.**
3.11Sheet Winches 
 Sheet winches shall be mounted in such a way that an operator is not required to be substantially below deck.**
3.12Mast Step 
 The heel of a keel stepped mast shall be securely fastened to the mast step or adjoining structure.**
3.14Pulpits, Stanchions, Lifelines 
3.14.2Lifelines required in Special Regulations shall be "taut". **
a)As a guide, when a deflecting force of 50 N (5.1 kgf, 11.2 lbf) is applied to a lifeline midway between supports, the lifeline should not deflect more than 50 mm.**
3.14.3The following shall be provided:**
a)a bow pulpit with vertical height and openings essentially conforming to Table 7. Bow pulpits may be open but the opening between the pulpit and any part of the boat shall never be greater than 360mm (14.2") (this requirement shall be checked by presenting a 360mm (14.2") circle inside the opening)Mo0,1,2,3,4
b)a stern pulpit, or lifelines arranged as an adequate substitute, with vertical openings conforming to Table 7Mo0,1,2,3,4
c)lifelines (guardlines) supported on stanchions, which, with pulpits, shall form an effectively continuous barrier around a working deck for man-overboard prevention. Lifelines shall be permanently supported at intervals of not more than 2.20m (86.6") and shall not pass outboard of supporting stanchions**
d)upper rails of pulpits at no less height above the working deck than the upper lifelines as in Table 7. **
e)Openable upper rails in bow pulpits shall be secured shut whilst racing**
f)Pulpits and stanchions shall be permanently installed. When there are sockets or studs, these shall be through-bolted, bonded or welded. The pulpit(s) and/or stanchions fitted to these shall be mechanically retained without the help of the life-lines. Without sockets or studs, pulpits and/or stanchions shall be through-bolted, bonded or welded.**
g)The bases of pulpits and stanchions shall not be further inboard from the edge of the appropriate working deck than 5% of maximum beam or 150 mm (6 in), whichever is greater.**
h)Stanchion or pulpit or pushpit bases shall not be situated outboard of a working deck. For the purpose of this rule the base shall be taken to include a sleeve or socket into which the tube is fitted but shall exclude a baseplate which carries fixings into the deck or hull. **
i)Provided the complete lifeline enclosure is supported by stanchions and pulpit bases effectively within the working deck, lifeline terminals and support struts may be fixed to a hull aft of the working deck **
j)Lifelines need not be fixed to a bow pulpit if they terminate at, or pass through, adequately braced stanchions set inside and overlapping the bow pulpit, provided that the gap between the upper lifeline and the bow pulpit does not exceed 150 mm (6 in). **
k)Lifelines shall be continuous and fixed only at (or near) the bow and stern. However a bona fide gate shall be permitted in the lifelines on each side of a yacht. Except at its end fittings, the movement of a lifeline in a fore-and-aft direction shall not be constrained. Temporary sleeving in 3.14.6 (c) shall not modify tension in the lifeline.**
l)Stanchions shall be straight and vertical except that:-**
iwithin the first 50 mm (2 in) from the deck, stanchions shall not be displaced horizontally from the point at which they emerge from the deck or stanchion base by more than 10 mm (3/8 in),and**
iistanchions may be angled to not more than 10 degrees from vertical at any point above 50 mm (2 in) from the deck. **
m)It is strongly recommended that designs also comply to ISO 15085**
3.14.5Lifeline Height, Vertical Openings, Number of Lifelines 
 TABLE 7**
under 8.5 m(28 ft) before January 1992 taut single lifeline at a height of no less than 450 mm (18 in) above the working deck. No vertical opening shall exceed 560 mm (22 in). **
under 8.5 m(28 ft) January 1992 and after as for under 8.5 m(28 ft) in table 7 above, except that when an intermediate lifeline is fitted no vertical opening shall exceed 380 mm (15 in). **
8.5 m (28 ft) and over before January 1993 taut double lifeline with upper lifeline at a height of no less than 600 mm (24 in) above the working deck. No vertical opening shall exceed 560 mm (22 in) **
8.5 m (28 ft)and over January 1993 and after as 8.5 m (28 ft) and over in Table 7 above, except that no vertical opening shall exceed 380 mm (15 in). **
all all on yachts with intermediate lifelines the intermediate line shall be not less than 230 mm (9 in) above the working deck **
    and shall be of the same construction and general arrangements as required for the upper.  
3.14.6Lifeline Minimum Diameters, Required Materials, Specifications 
a)Lifelines shall be of :**
  - stranded stainless steel wire or **
  - Single-braided High Modulus Polyethylene (HMPE) (Dyneema®/Spectra® or equivalent) rope (new in 2012)**
 US SAILING note. An article describing the best techniques for using Dyneema line, particularly in the life line application, is posted at **
b)The minimum diameter of all lifelines is specified in table 8 below.**
c)Stainless steel lifelines shall be uncoated and used without close-fitting sleeving, however, temporary sleeving may be fitted provided it is regularly removed for inspection. **
d)When stainless wire is used, Grade 316 is recommended.**
e)When HMPE (Dyneema®/Spectra®) is used, it shall be spliced in accordance with the manufacturer’s recommended procedures. (new in 2012)**
f)A taut lanyard of synthetic rope may be used to secure lifelines provided the gap it closes does not exceed 100 mm (4 in). This lanyard shall be replaced annually at a minimum.**
g)All wire, fittings, anchorage points, fixtures and lanyards shall comprise a lifeline enclosure system which has at all points at least the breaking strength of the required lifeline wire.**
 TABLE 8**
under 8.5 m (28ft) 3 mm (1/8 in)
8.5m - 13 m 4 mm (5/32 in)
over 13 m (43 ft) 5 mm (3/16 in)
3.14.7Pulpits, Stanchions, Lifelines - Limitations on Materials 
 TABLE 9**
before January 1987 carbon fibre is not recommended in stanchions pulpits and lifelines.
January 1987 and after stanchions, pulpits and lifelines shall not be made of carbon fibre.
3.18.2A toilet, permanently installed or fitted bucketMoMu3,4
3.19.2Bunks, permanently installed**
3.22Hand Holds
 Adequate hand holds shall be fitted below deck so that crew members may move about safely at sea.**
 A hand hold should be capable of withstanding without rupture a side force of 1500N - attention is drawn to ISO 15085. 
3.23Bilge Pumps and Buckets 
3.23.1No bilge pump may discharge into a cockpit unless that cockpit opens aft to the sea. **
3.23.2Bilge pumps shall not be connected to cockpit drains. (OSR 3.09)**
3.23.3Bilge pumps and strum boxes shall be readily accessible for maintenance and for clearing out debris **
3.23.4Unless permanently installed, each bilge pump handle shall be provided with a lanyard or catch or similar device to prevent accidental loss**
3.23.5The following shall be provided: 
e)one manual bilge pump Mo4
f)two buckets of stout construction each with at least 9 litres (2 UK gallons, 2.4 US gallons) capacity. Each bucket to have a lanyard.**
3.24.1The following shall be provided:- 
a)a marine magnetic compass, independent of any power supply, permanently installed and correctly adjusted with deviation card, and **
 No mast shall have less than two halyards, each capable of hoisting a sail.**
 Boom Support. US SAILING prescribes that some means must exist to prevent the boom from dropping if support from the mainsail and/or halyard fails. Topping lifts or supporting vangs are acceptable for this purpose.**
3.27Navigation Lights (see OSR 2.03.3) 
3.27.1Navigation lights shall be mounted so that they will not be masked by sails or the heeling of the yacht. **
3.27.2Navigation lights shall not be mounted below deck level and should be at no less height than immediately under the upper lifeline. **
3.27.3Navigation light intensity  
 TABLE 11 
under 12 m (39.4 ft) 10 W
12 m (39.4 ft) and above 25 W
 US SAILING prescribes that in the US compliance with the recommendations of COLREGS shall suffice in satisfying these regulations. COLREGS requirements are as follows;**
 TABLE 14 
  LOA Light Luminous Minimum Range of Visibility
  Under 39.4 ft Side .9 candelas 1 mile
    Stern 4.3 candelas 2 miles
  39.4 ft and above Side 4.3 candelas 2 miles
  and less than 164 ft Stern 4.3 candelas 2 miles
3.27.5spare bulbs for navigation lights shall be carried, or for lights not dependent on bulbs, appropriate spares.**
3.28Engines, Generators, Fuel  
3.28.1Propulsion Engines**
a)Engines and associated systems shall be installed in accordance with their manufacturers’ guidelines and shall be of a type, strength, capacity, and installation suitable for the size and intended use of the yacht.**
b)An inboard propulsion engine when fitted shall: be provided with a permanently installed exhaust, coolant, and fuel supply systems and fuel tank(s); be securely covered; and have adequate protection from the effects of heavy weather.**
 A separate generator for electricity is optional. However, when a separate generator is carried it shall be permanently installed, securely covered, and shall have permanently installed exhaust, cooling and fuel supply systems and fuel tank(s), and have adequate protection from the effects of heavy weather.**
3.29Communications Equipment, EPFS (Electronic Position-Fixing System), Radar, AIS **
3.29.1The following shall be provided:**
e)A hand-held marine VHF transceiver, watertight or with a waterproof cover. When not in use to be stowed in a grab bag or emergency container (see OSR 4.21)MoMu1,2,3,4
f)Independent of a main radio transceiver, a radio receiver capable of receiving weather bulletins **
3.29.2Yachts are reminded that no reflector, active or passive, is a guarantee of detection or tracking by a vessel using radar.**
a)The attention of persons in charge is drawn to legislation in force or imminent affecting the territorial seas of some countries in which the carriage of an AIS set is or will be mandatory for certain vessels including relatively small craft.**
(for water & fuel see OSR 3.21 and OSR 3.28)
4.01Sail Letters & Numbers  
4.01.1Yachts which are not in an ISAF International Class or Recognized Class shall comply with RRS 77 and Appendix G as closely as possible, except that sail numbers allotted by a State authority are acceptable . **
4.01.2Sail numbers and letters of the size carried on the mainsail must be displayed by alternative means when none of the numbered sails is set. **
4.03Soft Wood Plugs 
 Soft wood plugs, tapered and of the appropriate size, shall be attached or stowed adjacent to the appropriate fitting for every through-hull opening. **
 US SAILING prescribes that wire jackstays may be of configurations other than 1 X 19.MoMu0,1,2,3
4.05Fire Extinguishers 
 Shall be provided as follows: 
4.05.1Fire extinguishers, at least two, readily accessible in suitable and different parts of the yacht**
4.05.4A fire blanket adjacent to every cooking device with an open flame (new in 2012)**
4.06.1An anchor or anchors shall be carried according to the table below: **
 TABLE 12**
any The specification of anchor, chain and rope shall be in accordance with relevant class rules or the rules of a recognised Classification Society (eg Lloyd’s, DNV, etc.) MoMu0
8.5 m (28 ft) and over 2 anchors together with a suitable combination of chain and rope, all ready for immediate use MoMu1,2,3
under 8.5 m (28 ft) 1 anchor together with a suitable combination of chain and rope, all ready for immediate use MoMu1,2,3
any 1 anchor, readily accessible MoMu4
a)1 anchor, readily accessibleMoMu4
4.07Flashlight(s) and Searchlight(s) 
4.07.1The following shall be provided:- 
a)A watertight, high-powered searchlight, suitable for searching for a person overboard at night and for collision avoidance with spare batteries and bulbs, and (new in 2012)**
b)a watertight flashlight with spare batteries and bulb**
4.08First Aid Manual and First Aid Kit**
4.08.1A suitable First Aid Manual shall be provided**
 In the absence of a National Authority's requirement, the latest edition of one of the following is recommended:-**
b)First Aid at Sea, by Douglas Justins and Colin Berry, published by Adlard Coles Nautical,LondonMoMu2,3,4
c)Le Guide de la medecine a distance, by Docteur J Y Chauve, published by Distance Assistance BP33 F-La Baule, cedex, France.**
d)‘PAN-PAN medico a bordo’ in Italian edited by Umberto Verna. (new in 2012)MoMu2,3,4
e)Skipper’s Medical Emergency Handbook by Dr Spike Briggs and Dr Campbell Mackenzie (new in 2012)**
 US SAILING endorses the above and additionally recommends the following manuals: Advanced First Aid by Peter Eastman, M.D., Cornell Maritime Press and A Comprehensive Guide to Marine Medicine by Eric A. Weiss, M.D. and Michael E. Jacobs, M.D., Adventure Medical Kit.**
4.08.2A First Aid Kit shall be provided**
4.08.3The contents and storage of the First Aid Kit should reflect the guidelines of the Manual carried, the likely conditions and duration of the passage, and the number of people aboard the yacht. **
 A foghorn shall be provided**
4.10Radar Reflector 
4.10.1A passive Radar Reflector (that is, a Radar Reflector without any power) shall be provided**
a)If a radar reflector is : (new in 2012)**
ioctahedral with triangular plates making up each pocket it must have a minimum diagonal measurement of 456 mm (18in). (new in 2012)**
iioctahederal with circular sector plates making up each pocket it must have a minimum diameter of 304mm (12in). (new in 2012)**
iiinot octahedral it must have a documented RCS (radar cross-section) of not less than 10 m2 at 0° elevation and be capable of performance around 360° in azimuth. (new in 2012)**
 The minimum effective height above water is 4.0 m (13 ft).**
 US SAILING prescribes that in the US, radar reflectors shall have a minimum documented "equivalent echoing area" of 6 sq. m. Octahedral reflectors shall have a minimum diameter of 12 inches.**
b)The passive and active devices referred to in these notes and in 4.10.1 and 4.10.2 above are primarily intended for use in the X (9GHz) band**
4.10.2The most effective radar response from a yacht may be provided by an RTE (Radar Target Enhancer) which may be on board in addition to the required passive reflector. An RTE should conform to ISO 8729-2:2009. An RTE is strongly recommended. (new in 2012)MoMu1,2,3,4
b)The display of a passive reflector or the operation of an RTE is for the person in charge to decide according to prevailing conditions.**
4.10.3When available, a passive radar reflector in compliance with ISO8729-1:2010 will offer improved performance over earlier models and has a size typified by a cylinder of not more than weight 5kg, height 750mm and diameter 300mm. (new in 2012)**
4.10.4S (3GHz) band radar is often used by ships in bad weather to complement X (9GHz) band radar. On S (3GHz) band a passive reflector offers about 1/10 the response obtained on the X (9GHz) band. Unless specifically designed to operate in the S(3GHz) band, an RTE will provide no response at all. (new in 2012)**
4.11Navigation Equipment 
 Navigational charts (not solely electronic), light list and chart plotting equipment shall be provided **
4.12Safety Equipment Location Chart 
 A safety equipment location chart in durable waterproof material shall be displayed in the main accommodation where it can best be seen, clearly marked with the location of principal items of safety equipment. **
4.13Echo Sounder or Lead Line 
4.13.1An echo sounder or lead line shall be providedMoMu1,2,3,4
4.16Tools and Spare Parts 
 Tools and spare parts, including effective means to quickly disconnect or sever the standing rigging from the hull shall be provided.**
4.17Yacht's name 
 Yacht's name shall be on miscellaneous buoyant equipment, such as lifejackets, cushions, lifebuoys, lifeslings, grab bags etc. **
4.18Marine grade retro-reflective material 
 Marine grade retro-reflective material shall be fitted to lifebuoys, lifeslings, liferafts and lifejackets. See OSRs 5.04, 5.08.**
4.22.1The following shall be provided within easy reach of the helmsman and ready for instant use:**
a)a lifebuoy with a self-igniting light and a drogue or a Lifesling with a self-igniting light and without a drogue. **
 For Category 4, US SAILING prescribes that the lifebuoy must be inherently buoyant.MoMu4
4.22.3Each inflatable lifebuoy and any automatic device (eg pole and flag extended by compressed gas) shall be tested and serviced at intervals in accordance with its manufacturer's instructions.**
4.22.4Each lifebuoy or lifesling shall be fitted with marine grade retro-reflective material (4.18).**
4.22.5It is recommended that the colour of each lifebuoy be a safety colour in the yellow-red range. (new in 2012)**
4.23Pyrotechnic and Light Signals 
4.23.1Pyrotechnic signals shall be provided conforming to SOLAS LSA Code Chapter III Visual Signals and not older than the stamped expiry date (if any) or if no expiry date stamped , not older than 4 years.**
6 4 2 MoMu0,1
4 4 2 MoMu2,3
  4 2 Mo4
2 4 2 Mu4
 TABLE 13 
4.24Heaving Line**
a)a heaving line shall be provided 15 m - 25 m (50 ft - 75 ft) length readily accessible to cockpit.**
b)the "throwing sock" type is recommended - see Appendix D**
 US SAILING prescribes that the heaving line be of 1/4 in. (6 mm) minimum diameter, floating, UV-inhibited and readily accessible to the cockpit.**
4.25Cockpit Knife 
 A strong, sharp knife, sheathed and securely restrained shall be provided readily accessible from the deck or a cockpit.**
4.26Storm & Heavy Weather Sails  
a)it is strongly recommended that persons in charge consult their designer and sailmaker to decide the most effective size for storm and heavy weather sails. The purpose of these sails is to provide safe propulsion for the yacht in severe weather -they are not intended as part of the racing inventory. The areas below are maxima. Smaller areas are likely to suit some yachts according to their stability and other characteristics. **
4.26.2High Visibility (new in 2012) 
a)Every storm jib shall either be of highly-visible coloured material (eg dayglo pink, orange or yellow) or have a highly-visible coloured patch at least 50% of the area of the sail (up to a maximum diameter of 3m) added on each side; and also that a rotating wing mast should have a highly-visible coloured patch on each side. A storm sail purchased after January 2014 shall have the material of the body of the sail a highly-visible colour. (new in 2012)**
 US Sailing prescribes that the requirement for a highly-visible colored material or patch covering 50% of the area of storm jibs in ISAF OSR 4.26.2 (a) is a recommendation in the US. After January 1, 2014, the requirements for new storm sails in ISAF OSR 4.26.2 (a) shall apply to CAT 0, 1, 2, and 3. This requirement grandfathers all storm sails made prior to January 1, 2014. (new in 2012) **
a)aromatic polyamides, carbon and similar fibres shall not be used in a trysail or storm jib but spectra/dyneema and similar materials are permitted. **
b)it is strongly recommended that a heavy-weather jib does not contain aromatic polyamides, carbon and similar fibres other than spectra/dyneema.**
4.26.4The following shall be provided:- 
a)sheeting positions on deck for each storm and heavy-weather sail; **
b)for each storm or heavy-weather jib, a means to attach the luff to the stay, independent of any luff-groove device. A heavy weather jib shall have the means of attachment readily available. A storm jib shall have the means of attachment permanently attached; (new in 2012)**
 Storm and heavy weather jib areas shall be calculated as: (0.255 x luff length x (luff perpendicular + 2 x half width))* To apply to sails made in January 2012 and after. (new in 2012) 
d)if a storm trysail is required by either OSR 4.26.4 (c) or OSR 4.26.4 (g) the yacht's sail number and letter(s) shall be placed on both sides of the trysail (or on a rotating wing mast as substitute for a trysail) in as large a size as practicable;**
d)if a storm trysail is required by OSR 4.26.4 (g) the yacht's sail number and letter(s) shall be placed on both sides of the trysail (or on a rotating wing mast as substitute for a trysail) in as large a size as practicable;Extract File Only MoMu 3,4
f)In addition to the storm jib required by OSR 4.26.4.e), a heavy-weather jib (or heavy-weather sail in a yacht with no forestay) of area not greater than 13.5% height of the foretriangle squared; (new in 2012)**
5.01.1Each crew member shall have a lifejacket as follows:-**
a) iIn accordance with ISO 12402 – 3 (Level 150) or equivalent, including EN 396 or UL 1180 (new in 2012)**
iiLifejackets manufactured after 1 January 2012 shall be in accordance with ISO 12402–3 (Level 150) and shall be fitted with:- (new in 2012)**
 • an emergency light in accordance with either ISO 12402-8 or SOLAS LSA code 2.2.3. (new in 2012) 
 • a sprayhood in accordance with ISO 12402-8. (new in 2012) 
 • a full deck safety harness in accordance with ISO 12401 (ISO 1095) including a crotch or thigh strap (holding down device) as specified in ISO 12401 (ISO 1095). (new in 2012) 
 • If of an inflatable type either (new in 2012) 
 (a) automatic, manual and oral inflation or (new in 2012) 
 (b) manual and oral inflation (new in 2012) 
 Notes: ISO 12402 requires Level 150 lifejackets to be fitted with a mandatory whistle and retro-reflective material. Also, when fitted with a safety harness, ISO 12402 requires that this shall be the full safety harness in accordance with ISO 12401. Any equivalent lifejacket shall have equal requirements. (new in 2012) 
 Persons of larger than average build are generally more buoyant than those of average build and so do not require a lifejacket with greater levels of flotation. Wearing a Level 275 lifejacket may hamper entry into liferafts. (new in 2012) 
b)fitted with either a crotch strap(s) / thigh straps or a full safety harness in accordance with ISO 12401, (new in 2012)**
 Note: The function of lifejacket crotch/thigh straps is to hold the buoyancy element down. A crew member before a race should adjust a lifejacket to fit then retain that lifejacket for the duration of the race. Correct adjustment is fundamental to the lifejacket functioning correctly. (new in 2012) 
c)fitted with a lifejacket light in accordance with SOLAS LSA code 2.2.3 (white, >0.75 candelas, >8 hours),**
d)if inflatable have a compressed gas inflation system,**
e)if inflatable, regularly checked for gas retention,**
f)compatible with the wearer's safety harness,**
g)clearly marked with the yacht's or wearer's name, **
  It is strongly recommended that a lifejacket has: 
j)a splashguard / sprayhood See ISO 12402 – 8,MoMu1,2,3,4
k)a PLB unit (as with other types of EPIRB, should be properly registered with the appropriate authority)MoMu1,2,3,4
l)if of a gas inflatable type, a spare cylinder and if appropriate a spare activation head MoMu1,2,3,4
5.01.4The person in charge shall personally check each lifejacket at least once annually.**
 US SAILING prescribes for Category 4 lifejackets as above or U.S. Coast Guard approved Type III personal floatation devices.MoMu4
 US SAILING prescribes that all personnel on deck shall wear properly fitted personal floatation while starting and finishing. At other times during the race, floatation shall be worn on deck except when the Captain of the boat directs that it may be set aside. (new in 2012)**
 US SAILING note: As is true of all of these regulations, the prescriptions above do not necessarily replace the requirements of other governing authorities.**
 US SAILING prescribes that harnesses and safety lines manufactured prior to Jan 2001 are not recommended in the U.S.**
 US SAILING prescribes that safety harnesses and PFD's shall be worn on Category 0 and 1 races from sundown to sun up while on deck.MoMu0,1
5.02.6Warning - a safety line and safety harness are not designed to tow a person in the water and it is important that the shortest safety line length possible be used with a harness to minimise or eliminate the risk of a person's torso becoming immersed in water outside the boat, especially when working on the foredeck. 1m safety lines or the midpoint snaphook on a 2m line should be used for this purpose. The diligent use of a properly adjusted safety harness and the shortest safety line practicable is regarded as by far the most effective way of preventing man overboard incidents.preventing man overboard incidents. (new in 2012)**
5.04Foul Weather Suits 
b)it is recommended that a foul weather suit should be fitted with marine-grade retro-reflective material, and should have high-visibility colours on its upper parts and sleeve cuffs.See OSR 4.18**
5.09Annual Man-Overboard Practice 
 US SAILING prescribes that the "Quick-Stop" man-overboard procedure shall be practiced aboard the yacht at least once annually. A certificate of such practice shall be signed by participating crew members and kept aboard the yacht.**
5.11Preventer or Boom Restraining Device 
 US SAILING recommends that a preventer or boom restraining device should be rigged in such a manner that attachment can be easily and quickly made, with the boom fully extended (running) without leaving the deck or leaning overboard. A process and plan for its use should be part of the crew's training and practice. Recommended for all boats in all categories.**
 US SAILING prescribes that training under this regulation (OSR 6.02) shall take place in a program that is approved by US SAILING and that shall require a minimum of 8 hours. Competetitors who are members of other National Governing Bodies may demonstrate that they have completed such training in accordance with the requirements of those organizations.MoMu0,1,2
6.04Routine Training On-Board**
6.04.1It is recommended that crews should practice safety routines at reasonable intervals including the drill for man-overboard recovery**
 US SAILING prescribes that each skipper in a Category 0 ,1 or 2 race shall ensure that a minimum of 30 percent of the crew have been trained in the use of the boat's equipment, including: liferafts and lifejackets; communications; pyrotechnics; EPIRBs; and fire prevention and fire fighting. A record of this training shall be kept aboard the boat in a manner similar to that required for certifying man-overboard training.MoMu0,1,2
 US SAILING Note: MNA recogized First Aid & CPR courses in the U.S. are posted at (new in 2012) 
 US SAILING recommends that at least two members of the crew be currently certified in cardiopulmonary resuscitation.**
6.05.3At least one member of the crew shall be familiar with First Aid procedures, hypothermia, drowning, cardio-pulmonary resuscitation and relevant communications systems (see OSR 6.02.7 and 6.03.3). (new in 2012)MoMu3,4
6.05.4An example model first aid training course is included in Appendix N. (new in 2012)**
 Appendix B - A guide to ISO and other Standards 
 Appendix C - Standard Inspection Card 
 Appendix D - Quickstop & Lifesling 
 Appendix E - Hypothermia 
 Appendix F - Drogues and sea anchors 
 Appendix K - Moveable and Variable Ballast 
end of file  

Mon 07 May 12 5:59:40 PM