Class Rule Changes
International 420 Class Association
Effective date: 2023-December-01
Status: Approved

Amendment One
C.1.1.4
Old:
C.1.1.4 The total weight of personal equipment worn, excluding trapeze harness and clothing(including footwear) worn below the knee shall not exceed 9 kg. The trapeze harness
shall not be filled with ballast and shall have a maximum weight of 3 kg. This changes
RRS 50.1(b)Amend to read:
C.1.1.4 The total weight of personal equipment worn, excluding trapeze harness and clothing(including footwear) worn below the knee shall not exceed 9 kg. The trapeze harness
shall not be filled with ballast, shall float in fresh water and shall have a maximum
weight of 3 kg. This changes RRS 50.1(b)Amendment Two
C.6.1 WEIGHT
Old:
C.6.1
The boat shall have a minimum boat weight of 100 kg. A compass with associatedbracket, if present, shall be included in the boat weight. Corrector weights, including
any required by D.6, shall have a maximum weight of 2 kg.
Amend to read:
C.6.1

The boat shall have a minimum boat weight of 101 kg. A compass with associatedbracket, if present, shall be included in the boat weight. Corrector weights, including
any required by D.6, shall have a maximum weight of 2 kg.

Amendment Three
C.10.2.2
Old:
C.10.2.2 Not more than one mainsail, one jib and one spinnaker shall be used during an event,except when a sail has been lost or damaged beyond repair, or when otherwise
specified in the Sailing Instructions. Such replacement may be made only with theapproval of the Technical Committee, or, in its absence, the Race Committee.

1Class Rule Changes
International 420 Class Association
Effective date: 2023-December-01
Status: Approved

Amend to read:
C.10.2.2 Not more than one mainsail, one jib and one spinnaker shall be used during an event,except when a sail has been lost or damaged beyond repair. Such replacement may
be made only with the approval of the Technical Committee, or in its absence, theRace Committee.

Amendment FourD.4.2.2
MANDATORY, WITH POSITION OR DIMENSION OPTIONAL
Old:
D.4.2.2 (i) A maximum of six fairleads (also mentioned in F.5.1.2) for the elastic cord of the two
trapeze wires.
Amend to read:
D.4.2.2 (i) A maximum of six fairleads (also mentioned in F.5.1.2) for the elastic cord of the twotrapeze lines.

Amendment Five
F.2.4.7
Old:
F.2.4.7

The positions of rigging points of the shrouds, forestay and trapeze wires shall beat the distances mentioned in F.2.7 (see shrouds, forestay and trapeze heights).

Amend to read:
F.2.4.7

The positions of rigging points of the shrouds, forestay and trapeze lines shall beat the distances mentioned in F.2.7 (see shrouds, forestay and trapeze heights).

Amendment Six
F.2.7
Old:
F.2.7

The centre of gravity of the mast, including fittings and rigging listed in F.2.6 with theshrouds, forestay, trapeze wires and halyards secured along the mast, shall be at
2400 mm minimum from the mast datum point. For the measurement, the halyards
shall be hoisted and the halyard tails outside the mast shall be kept in hand by themeasurer.

Amend to read:
F.2.7

2The centre of gravity of the mast, including fittings and rigging listed in F.2.6 with theshrouds, forestay, trapeze lines and halyards secured along the mast, shall be at 2400
mm minimum from the mast datum point. For the measurement, the halyards shallbe hoisted and the halyard tails outside the mast shall be kept in hand by themeasurer.

Class Rule Changes
International 420 Class Association
Effective date: 2023-December-01
Status: Approved

Amendment Seven
F.5.1.2
Old:
F.5.1.2

One steel trapeze wire, with a minimum diameter of 2 mm, on each side for the useof one person only. Each trapeze adjustment system shall be provided with amaximum of one handhold, two sheaves, a ring or hook, an elastic cord, one rope,and one cleat. The trapeze wires may be substituted with rope for a maximum lengthof 500mm from the handhold top. The two trapezes shall be connected to the hull byelastic cord with a maximum of six fairleads as stated in D.4.2.2.(i). Elastic is permitted
to keep each trapeze wire clear of the spreaders and shrouds. Self-tacking trapeze
systems are not permitted.

Amend to read:
F.5.1.2

One trapeze line, with a minimum diameter of 2 mm, on each side for the use of one
person only. The material of the trapeze line is optional. Each trapeze adjustment
system shall be provided with a maximum of one handhold, two sheaves, a ring orhook, an elastic cord, one rope, and one cleat. The two trapezes shall be connectedto the hull by elastic cord with a maximum of six fairleads as stated in D.4.2.2.(i).
Elastic is permitted to keep each trapeze line clear of the spreaders and shrouds.
Self-tacking trapeze systems are not permitted.

Amendment Eight (Housekeeping changes)
Text added as follows:
F.6.2 PARTS(a) MANDATORY(1) Mainsail halyard (See F.2.4.2)(2) Headsail halyard (See F.2.4.12)(3) Spinnaker halyard, the tail of which may be attached to an elastic rope (See D.4.2.2(g)and D.4.2.3(e))(4) Spinnaker pole lift and downhaul (see F.2.4.15 and D.4.2.2(j))(b) OPTIONAL(1) Mainsail Cunningham line (see D.4.2.3(n))(2) Mainsail outhaul (see F.3.4.14)(3) Mainsail tack attachment (see F.2.4.13)(4) One Jib Tack adjustment system (see D.4.2.3(m))

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