EN ISO 11812:2024/A1:2024

Small craft - Watertight or quick-draining recesses and cockpits - Amendment 1 (ISO 11812:2020/Amd 1:2024)

2022-02-25 - To be launched with prEN ISO 11812 (WI 00464086).

Kleine Wasserfahrzeuge - Wasserdichte oder schnell-lenzende Rezesse und Plichten - ÄNDERUNG 1 (ISO 11812:2020/Amd 1:2024)

Petits navires - Cavités et cockpits étanches ou rapidement autovideurs - Amendement 1 (ISO 11812:2020/Amd 1:2024)

Mala plovila - Vodotesni prostori ter prostori in kabine s hitrim odvajanjem vode - Dopolnilo A1 (ISO 11812:2020/Amd 1:2024)

General Information

• Status: Published
• Publication Date: 24-Sep-2024
• ICS: 47.080 - Small craft
• Technical Committee: CEN/TC 464 - Small Craft
• Drafting Committee: CEN/TC 464 - Small Craft
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 25-Sep-2024
• Completion Date: 25-Sep-2024
• Directive: 2013/53/EU - Directive 2013/53/EU of the European Parliament and of the Council of 20 November 2013 on recreational craft and personal watercraft and repealing Directive 94/25/EC
• Mandate: M/542 - [C(2015)8736] Standardisation Request to the European Committee for Standardisation and the European Committee for Electro-technical Standardisation as regards recreational craft and personal watercraft in support of Directive 2013/53/EU of the European Parliament and of the Council of 20 November 2013 on recreational craft and personal watercraft and repealing Directive 94/25/EC.
• Ref Project: SIST EN ISO 11812:2024/A1:2024 - Small craft - Watertight or quick-draining recesses and cockpits - Amendment 1 (ISO 11812:2020/Amd 1:2024)

Relations

• Amends: EN ISO 11812:2024 - Small craft - Watertight or quick-draining recesses and cockpits (ISO 11812:2020)
• Effective Date: 02-Mar-2022

Overview

EN ISO 11812:2024/A1:2024 is Amendment 1 to ISO 11812:2020, published by CEN in 2024. It updates the international standard for small craft - watertight or quick‑draining recesses and cockpits, clarifying definitions, measurement methods and minimum dimensional requirements. The amendment was approved by CEN (12 August 2024) and aligns the European implementation with the ISO text. It also identifies the relationship with EU Directive 2013/53/EU and provides a voluntary means to claim conformity for relevant essential requirements.

Key topics and technical requirements

• Updated terminology and definitions - Clarifies entries such as recess open to the sea, recess retention height, and notes that design categories and fully loaded condition are defined by ISO 12217 and ISO 8666 respectively.
• Measurement conventions - Specifies how to measure recess bottom height (H_B) above the reference waterline for single‑ and multi‑bottom recesses and updates references to hull dimensions per ISO 8666.
• Recess retention height - Introduces a quantitative definition: the horizontal plane below which the sum of open areas to the outside exceeds a threshold related to the recess bottom area (expressed in the amendment as A/(L·B)).
• Companionway sill and quick‑draining requirements - Revises minimum companionway sill heights and minimum recess bottom heights for quick‑draining recesses, with cross‑references to tables in the standard; exemptions apply for recesses with reduced flooding risk.
• Watertightness testing - Confirms that test procedures for watertightness degrees are handled by ISO 12216.
• Cross‑discipline limits - Emphasizes that this standard does not guarantee stability or buoyancy effects of retained water; those are addressed in ISO 12217‑1/2/3.

Practical applications and users

This amendment is essential for:

• Naval architects and boat designers applying consistent rules for cockpit/recess geometry and drainage
• Boatbuilders and component manufacturers (hatches, scuppers, drains, portlights)
• Conformity assessment bodies, test laboratories and classification societies verifying compliance
• National standards bodies and regulators implementing EU Directive conformity routes Use cases include design reviews, product specification, type approval, CE/UKCA conformity documentation and safety assessments of flooding/drainage behavior.

Related standards

• ISO 8666 - Small craft: principal data (dimensions, loading)
• ISO 12216 - Windows, portlights, hatches: strength and watertightness tests
• ISO 12217‑1 / ‑2 / ‑3 - Stability and buoyancy assessment and categorization
• ISO 9093 - Seacocks and through‑hull fittings

Keywords: EN ISO 11812:2024/A1:2024, ISO 11812 amendment, small craft, watertight recesses, quick‑draining cockpits, recess retention height, companionway sill height, ISO 12216, ISO 12217.

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2024
Mala plovila - Vodotesni prostori ter prostori in kabine s hitrim odvajanjem vode -
Dopolnilo A1 (ISO 11812:2020/Amd 1:2024)
Small craft - Watertight or quick-draining recesses and cockpits - Amendment 1 (ISO
11812:2020/Amd 1:2024)
Kleine Wasserfahrzeuge - Wasserdichte und schnell-lenzende Plichten - Änderung 1
(ISO 11812:2020/Amd 1:2024)
Petits navires - Cavités et cockpits étanches ou rapidement autovideurs - Amendement 1
(ISO 11812:2020/Amd 1:2024)
Ta slovenski standard je istoveten z: EN ISO 11812:2024/A1:2024
ICS:
47.080 Čolni Small craft
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 11812:2024/A1
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2024
EUROPÄISCHE NORM
ICS 47.080
English Version
Small craft - Watertight or quick-draining recesses and
cockpits - Amendment 1 (ISO 11812:2020/Amd 1:2024)
Petits navires - Cavités et cockpits étanches ou Kleine Wasserfahrzeuge - Wasserdichte und schnell-
rapidement autovideurs - Amendement 1 (ISO lenzende Plichten - Änderung 1 (ISO 11812:2020/Amd
11812:2020/Amd 1:2024) 1:2024)
This amendment A1 modifies the European Standard EN ISO 11812:2024; it was approved by CEN on 12 August 2024.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of
this amendment into the relevant national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11812:2024/A1:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2013/53/EU aimed to be covered . 4

European foreword
This document (EN ISO 11812:2024/A1:2024) has been prepared by Technical Committee ISO/TC 188
"Small craft" in collaboration with Technical Committee CEN/TC 464 “Small Craft” the secretariat of
which is held by SIS.
This Amendment to the European Standard EN ISO 11812:2024 shall be given the status of a national
standard, either by publication of an identical text or by endorsement, at the latest by March 2025, and
conflicting national standards shall be withdrawn at the latest by March 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a standardization request addressed to CEN by the European
Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
Member States.
For the relationship with EU Legislation, see informative Annex ZA, which is an integral part of this
document.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 11812:2020/Amd 1:2024 has been approved by CEN as EN ISO 11812:2024/A1:2024
without any modification.
Annex ZA
(informative)
Relationship between this European Standard and the essential
requirements of Directive 2013/53/EU aimed to be covered
This European Standard has been prepared under a Commission’s standardization request
M/542/C(2015) 8736 final to provide one voluntary means of conforming to essential requirements of
Directive 2013/53/EU.
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZA.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding essential requirements
of that Directive, and associated EFTA regulations.
Table ZA.1 — Correspondence between this European Standard and Annex of Directive
2013/53/EU
Essential Requirements of Clause(s)/sub-clause(s) Remarks/Notes
Directive 2013/53/EU of this EN
Annex I, Part A, 3.5 a) and b) 5, 6, 7, 8, 9, 10 (except 10.2.2) The scope of this document is
Flooding wider than that of Article 2.1.(a)

of Directive 2013/53/EU in that
Annex A (except A.1 and A.5.2.2)
it includes craft with a Load Line
Length of up to 24m which can
be considerably greater than 24
m hull length. Craft with hull
length greater than 24m are
excluded from the
correspondence between this
standard and Annex I of
Directive 2013/53/EU.
This standard deals with
recesses and cockpits that are
drained by gravity. It does not
deal with removal of water by
pumps or other means.
This standard only considers
ventilation openings installed on
the surfaces of a quick-draining
or watertight recess.
Annex I, Part A, 2.5 11 Owner’s manual
Table ZA.2 — Applicable Standards to confer presumption of conformity
as described in this Annex ZA
Column 1 Column 2 Column 3 Column 4
Reference in International
Title Corresponding European
Clause 2 Standard Edition
Standard Edition
ISO 8666 ISO 8666:2020 Small craft — Principal data EN ISO 8666:2020
EN ISO 8666:2020/A11:2021
ISO 9093 ISO 9093:2020 Small craft — Seacocks and EN ISO 9093:2021
through-hull fittings
ISO 12216 ISO 12216:2020 Small craft — Windows, EN ISO 12216:2022
portlights, hatches,
EN ISO 12216:2022/A11:2023
deadlights and doors —
Strength and watertightness
requirements
ISO 12217-1 ISO 12217-1:2022 Small craft — Stability and Not yet available
buoyancy assessment and
For applicable standard edition
categorization — Part 1:
see Column 2
Non-sailing boats of hull
length greater than or equal
to 6 m
ISO 12217-2 ISO 12217-2:2022 Small craft — Stability and Not yet available
buoyancy assessment and
For applicable standard edition
categorization — Part 2:
see Column 2
Sailing boats of hull length
greater than or equal to 6 m
ISO 12217-3 ISO 12217-3:2022 Small craft — Stability and Not yet available
buoyancy assessment and
For applicable standard edition
categorization — Part 3:
see Column 2
Boats of hull length less than
6 m
The documents listed in the Column 1 of Table ZA.2, in whole or in part, are normatively referenced in
this document, i.e. are indispensable for its application. The achievement of the presumption of
conformity is subject to the application of the edition of Standards as listed in Column 4 or, if no
European Standard Edition exists, the International Standard Edition given in Column 2 of Table ZA.2.
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
Standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
International
Standard
ISO 11812
Second edition
Small craft — Watertight or quick-
2020-07
draining recesses and cockpits
AMENDMENT 1
AMENDMENT 1
2024-08
Petits navires — Cavités et cockpits étanches ou rapidement
autovideurs
AMENDEMENT 1
Reference number
ISO 11812:2020/Amd.1:2024(en) © ISO 2024

ISO 11812:2020/Amd.1:2024(en)
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
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Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 11812:2020/Amd.1:2024(en)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO’s adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 188, Small craft, in collaboration with the
European Committee for Standardization (CEN) Technical Committee CEN/TC 464, Small Craft, in accordance
with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iii
ISO 11812:2020/Amd.1:2024(en)
Small craft — Watertight or quick-draining recesses and
cockpits
AMENDMENT 1
Foreword
Replace “The main changes compared to the previous edition are as follows:” with “The main changes are as
follows (see also Annex D):”.
Clause 1
Replace last sentence by the following:
This document does not guarantee that the water contained in a watertight or quick-draining recess or
cockpit will not affect the stability and buoyancy of the craft, which are covered by ISO 12217-1, ISO 12217-2
and ISO 12217-3.
Clause 2
Replace the seven references by the following:
ISO 8666, Small craft — Principal data
ISO 9093, Small craft — Seacocks and through-hull fittings
ISO 12216, Small craft — Windows, portlights, hatches, deadlights and doors — Strength and watertightness
requirements
ISO 12217-1, Small craft — Stability and buoyancy assessment and categorization — Part 1: Non-sailing boats
of hull length greater than or equal to 6 m
ISO 12217-2, Small craft — Stability and buoyancy assessment and categorization — Part 2: Sailing boats of hull
length greater than or equal to 6 m
ISO 12217-3, Small craft — Stability and buoyancy assessment and categorization — Part 3: Boats of hull length
less than 6 m
3.1
Replace Note 1 to entry by the following:
Note 1 to entry: The design categories are defined in ISO 12217-1, ISO 12217-2 and ISO 12217-3.

ISO 11812:2020/Amd.1:2024(en)
3.2
Replace Note 1 to entry by the following:
Note 1 to entry: The reference sail area, A , is defined in ISO 8666.
s
3.3
Replace Note 1 to entry by the following:
Note 1 to entry: The reference sail area, A , is defined in ISO 8666.
s
3.4
Replace Note 1 to entry by the following:
Note 1 to entry: The fully loaded, ready-for-use condition is defined in ISO 8666.

3.5
Replace Note 1 to entry by the following:
Note 1 to entry: The fully loaded, ready-for-use condition is defined in ISO 8666.

3.6
Replace Note 1 to entry by the following:
Note 1 to entry: Where fitted with closure device(s) according to ISO 12216, cabins, shelters or lockers are
not recesses.
3.10
Replace the terminological entry by the following:
3.10
recess open to the sea
recess (3.6) where
...