These Championship Rules shall apply to world and other International Championships.

2.1 The sailing water shall be chosen with care to ensure reliable sailing conditions. Particular attention shall be given to the following considerations, subject to the provisions of Rule C-9.0:

2.2 The following facilities should be close to the launching area and fully described in the Organising Authority's submission:

2.3 The Host National Association shall ensure the availability of the following facilities either close to the dinghy park or served by adequate means of transport. Details shall be included in the Organising Authority's submission:

2.4 The likelihood of attracting a satisfactory level of Sponsorship should be considered and commented on in the preliminary application

3.1 A National 505 Association intending to host an International Championship shall make an application in accordance with the initial criteria in association with an intended Organising Authority. Immediately upon acceptance of the application it shall proceed to set up the Organising Committee and the Organising Authority shall prepare the detailed initial submission.

3.2 The Organising Committee shall include not less than two active sailing member of the host country's National Association, with Championship experience in the Class, and the senior members of the Organising Authority to ensure that the Organising Authority recognises and caters for the wishes of the International Class.

The Organising Authority must show in the preliminary application either that it has organised similar events in the past or is capable of doing so. Preliminary Applications to organise World and other International events shall be made to the International Office for incorporation in the Agenda of the International Annual General Meeting at least three years before the date of the proposed event and the application shall contain proposals covering all the points contained in the initial criteria. The Organising Committee shall ensure that adequate communication is maintained with the International Office at all times after the application to hold a championship has been made and shall submit detailed proposals for approval at the International Annual General Meeting two years before the proposed event.

The Organising Authority shall ensure that the National Authority of the host country final proposals. The Organising Authority shall make its final proposals to the International Office not less than twelve months before the proposed date of the start of the Championship Regatta. When the results of any comments by the Class have been incorporated in the submission by agreement, a copy of these Championship Rules and of the Organising Authority's final proposals shall be appended to the Championship Contract and signed on behalf of the International Association and of the Organising Authority and these shall together form the contract for the event between the parties.

3.3 During the week preceding the start of the Championship Regatta a Review Committee shall be convened to check that the terms of the contract have been fulfilled and to authorise any final adjustments in the arrangements to ensure smooth and fair conditions in all aspects of the Championship. The members of the Review Committee shall be:

3.4. The Race Committee shall include at least one Association Member nominated by the International Association and conversant with the Rules and procedures of the Class who may advise the Chairman on all decisions affecting the conduct of the races and shall serve as the principal liaison officer between the Race Committee and the International Jury.

At the conclusion of each day's racing the Class Liaison Officer serving on the Race Committee shall make himself available for no less than one hour at a time and place to be specified in the Sailing Instructions for the purpose of receiving comments from the competitors on the conduct of the Championship. The conduct of these meetings and any resulting action shall be at the sole discretion of the International Jury

3.5 An International Jury shall be convened for the Championship in accordance with current Racing Rules of Sailing ("RRS"). In addition to the requirements of RRS, at least one member of the Jury shall be a Class Member conversant with the Rules and procedures of the Class. The Host National Association shall apply to the National Authority for, decisions of the International Jury to be exempt from Appeal in accordance with the current conditions of ISAF for such permission to be granted.

3.6 The racing and social calendars shall be so arranged as to provide sufficient free time for any International Association meetings.

4.1 Every competitor in a championship of the International Association shall be a Member of the Association and have paid his Subscription for the year in which the championship is held.

4.2 Championships shall be open to all eligible competitors, subject to the Organising Authority having the right to determine the maximum number of entries. If the Organising Authority wishes to stipulate a maximum number of entries, this must be stated when it makes its initial application and be included in the Notice of Race. In the event of a maximum number being stipulated, places shall be allocated in accordance with the procedure in Rule 4.3.

4.3 Entries will be allocated by the IEC to each National Association in accordance with the ratio of the average number of Member’s subscriptions paid by that Association for the two years preceding the Championship to the average total Membership of the International Association over the same period.. Individual Members representing in good faith any nation which does not have a National Association may be allocated an entry at the discretion of the IEC, not exceeding one entry per nation. In determining the number of places for allocation, one entry shall be reserved for each International Officer, subject to the payment of the prescribed entry fee.

4.4 Any entries allocated to a National Association but not taken up three months before the start of the Championship may be reallocated by the Organising Authority in conjunction with the IEC. The reallocation shall have regard to all Members who wish to enter and , as far as possible, shall be made proportionately to the original allocation.

5.1 The Organising Committee is responsible for the event budget. It shall take note of RRS Appendix Q, particularly as it relates to organisation and budget

5.2 The Budget shall cover the whole cost of the regatta. Attention is drawn in particular to the need to allow for costs relating to;

5.3 The provision of travel and accommodation for Officials and Jury members should not exceed Economy air fare, First Class rail fare, three star hotel accommodation and a reasonable daily messing allowance when appropriate. No allowance shall be made for the expenses of spouses. The Organising Committee shall advise all recipients of these facilities at the outset and of the standard to be provided and ensure that providers accept only an Organising Committee signatory for charges to the Regatta Account.

5.4 The Organising Committee should take note of the opportunities for early cash income to cover preliminary expenses presented by the sale of franchises, advertising in regatta publications and Sponsors' initial payments with the appropriate early exposure. The television rights of all international regattas of the class are the property of ISAF and care is required to ensure that the International Office is kept fully informed of any planned sponsors materials to be displayed on yachts, equipment or clothing and of the terms available for any potential TV coverage so that the necessary agreements with ISAF can be effected.

5.5 It is desirable to obtain sponsorship. The order of priority for the application of Sponsor's funds should be:

5.6 Event Sponsor’s Advertising
In Championship events, competitors shall display and keep displayed for the duration of the regatta such event sponsors' material as the IEC shall require. The International Association may permit increased exposure of Event Sponsors' material beyond the limits set for individual advertising.

5.7 Advertising Fee
A boat which displays individual advertising shall pay an additional fee of GBP100 (One Hundred Pounds Sterling), such sum being subject to annual review by the IEC. The Organising Authority shall retain half of the additional fee collected under this rule and allocate it to the Championship budget for the general benefit of all competitors. It shall forward the other half of the fee to the International Office.

6.1 Measurement shall be carried out under the personal supervision of the Championship Chief Measurer who shall be the Class International Measurer or his nominated deputy. Only the IRC shall be empowered to nominate a deputy to be the Championship Chief Measurer. The Organising Authority shall defray the costs of the Championship Chief Measurer in attending the Championship and of outward and return shipment of his templates and equipment.

6.2 The Host National Association shall carry out such measurement as is necessary in consultation with the IRC and the International Measurer all sails and spars shall be checked and all boats shall be weighed at their sailing weight. Lead corrector weights shall be available for purchase by competitors who need to adjust the weight of their boats. Selected 505s will be subject to a compete hull measurement by the Chief Measurer. The Host National Association shall make available a set of official templates throughout the measuring and the duration of the championship. It shall verify in good time that the measurement facilities required by Rule C-2.3.4 are available.

The International Association will make available a master set of templates. The Notice of Race and the Sailing Instructions shall specify that no more than two suits of sails and two sets of spars may be presented for measurement. The Race Committee may admit further measurement only in exceptional circumstances.

7.1 The Organising Authority shall provide an adequate committee boat which can be suitably manoeuvred and anchored. It should have radio communication with the shore and all mark boats, safety and support boats.

7.2 There shall be at least one safety boat to every 10 boats competing and a proportion of these should have a low enough freeboard to allow manoeuvring close to competitors without risk of damage.

7.3 There shall be at least one fast and manoeuvrable vessel with good all-round visibility at the disposal of the International Jury.

7.4 There should be adequate facilities to enable the Press and spectators to go afloat to watch the racing without interfering with the operation of the craft involved in the management of the racing.

8.1 Provided there has been a Pre-World Regatta there shall be no practice race. There shall be seven races during a World championship. The races should be sailed consecutively as far as possible with no more than one race per day. If only one race is lost for any reason it shall be abandoned. Upon the loss of a second race the Race Committee shall endeavour to maintain the programme minus one race by scheduling two races as soon as is reasonable on subsequent days until the programme minus one race has been recovered, if possible.

Only one race shall be sailed on the final day unless at the start of the final day’s racing only one race has been completed."

Under no circumstances shall more than two races be sailed on any one day.

8.2 The race time should normally be midday unless local conditions make another time desirable in the view of the Organising Committee. The race time should be stated in the Preliminary Notice of Race.

8.3 Races should not normally be started when the wind gusts exceed 35 knots (18 metres per second) or when the wind or sea conditions make racing unsafe or when there are significant periods when the wind is less than 3 knots (1.5 metres per second).

9.1 Courses shall consist of nine legs of alternating triangular and windward/leeward configuration and should be laid to Port unless the Class Liaison Officer agrees that conditions make this impracticable or undesirable. The requirements of the Class are as follows:

10.1 The notice should be available as soon as possible and not later than eight months before the event is to be held.

10.2 The notice shall contain the information required by RRS and by these Rules, together with any unusual requirements or conditions, for example any requirement to insure or any local requirement concerning safety. It shall also contain the date on which any meeting at IGC or International General Meeting is to be held.

10.3 As soon as it is available. the Organising Authority shall circulate copies of the Notice of Race to the International Office and National Secretaries of all Countries eligible to enter competitors in the event

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11.1 The Sailing Instructions shall be available to competitors as soon as they arrive for the Preliminary Regatta or Practice Race.

11.2 The Sailing Instructions required by the Class are a document forming part of the Class Rules. Before the Notice of Race is issued the Organising Authority shall consider, in conjunction with the Organising Committee, whether it recommends any addition or alteration to take account of local conditions or practice. The draft Sailing Instructions shall be submitted to the International Office for consideration six months before the start of the Regatta and only published with the authority of the International Association, which will not be unreasonably withheld.

11.3 When a change of sailing instructions is deemed necessary the wording of such a change shall be approved by the Jury Chairman, the Chairman of the Race Committee, the President of the International 505 Class Association or his nominee and the Class Liaison Officer for the Regatta.