EN ISO 8437-3:2021/A1:2026

• Status: Published
• Publication Date: 19-May-2026
• ICS: 43.160 - Special purpose vehicles
• Technical Committee: CEN/TC 144 - Tractors and machinery for agriculture and forestry
• Drafting Committee: CEN/TC 144/WG 7 - Garden equipment
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 20-May-2026
• Completion Date: 20-May-2026
• Directive: Harmonized Standard2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Ref Project: SIST EN ISO 8437-3:2021/A1:2026 - Snow throwers - Safety requirements and test procedures - Part 3: Ride-on snow throwers - Amendment 1 (ISO 8437-3:2019/Amd 1:2026)

• Consolidated By: ISO 8437-3:2019/Amd 1:2026 - Snow throwers — Safety requirements and test procedures — Part 3: Ride-on snow throwers — Amendment 1
• Effective Date: 12-Feb-2026
• Amends: EN ISO 8437-3:2021 - Snow throwers - Safety requirements and test procedures - Part 3: Ride-on snow throwers (ISO 8437-3:2019)
• Effective Date: 20-Oct-2021

Overview

EN ISO 8437-3:2021/A1:2026 is a European amendment standard focused on the safety requirements and test procedures for combustion engine powered, ride-on snow throwers. Developed by CEN in cooperation with ISO, this amendment (ISO 8437-3:2019/FDAM 1:2026) updates the original requirements to reflect the latest developments and best practices in operator safety, machinery design, and test methodologies for special purpose vehicles used in snow removal.

This standard is a critical resource for manufacturers, suppliers, and regulatory bodies involved with the design and use of powered ride-on snow throwers, ensuring compliance with stringent safety regulations and market expectations.

Key Topics

• Safety Requirements: Clarifies and updates essential safety features for combustion engine powered ride-on snow throwers, addressing operator presence control (OPC) systems, ergonomic controls, and component guarding.
• Operator Presence Controls: Improved specifications, particularly for foot-actuated OPCs, to ensure clutch engagement requires deliberate operator action and is positioned safely relative to other foot controls.
• Guarding and Visibility: Updates to the design and extension of collector/impeller housings to prevent direct operator exposure to moving parts, addressing risks through enhanced protective barriers.
• Terminology Harmonization: Standardizes the spelling of technical terms (e.g., replacing "tire" with "tyre") to align with international usage and reduce ambiguity in documentation and labeling.
• Test Procedures: Outlines robust methods for verifying compliance with updated safety features, including specific tests for operator controls and guarding effectiveness.

Applications

EN ISO 8437-3:2021/A1:2026 is highly relevant across several sectors:

• Manufacturers of Ride-on Snow Throwers: Enables companies to design snow throwers that meet up-to-date safety standards, supporting access to international and European markets.
• Product Testing and Certification: Used by accredited testing laboratories and certification bodies to ensure products conform to the latest safety and performance requirements.
• Regulatory Compliance: Assists national and regional authorities in verifying compliance for market approval, workplace safety, and public use.
• Procurement and Specification: Provides procurement professionals with a clear benchmark for requiring compliant ride-on snow throwers in tenders and contracts.
• Research and Development: Offers a foundation for further innovation in snow removal machinery where operator safety and performance are critical.

Related Standards

For comprehensive safety and performance, EN ISO 8437-3:2021/A1:2026 should be used alongside other key international standards:

• ISO 8437-1: General safety requirements and test procedures for snow throwers.
• ISO 8437-4: Additional requirements for snow thrower accessories or features.
• EN ISO 12100: General principles for machinery safety design and risk assessment.
• ISO/IEC Directives: Guidance for standard development and application.
• ICS 43.160: Standards for special purpose vehicles, including snow removal and maintenance equipment.

Adopting this amendment ensures ride-on snow throwers are designed and manufactured to the highest safety standards, supporting operator protection, product reliability, and regulatory acceptance in global markets.

SLOVENSKI STANDARD
01-julij-2026
Snežne freze - Varnostne zahteve in preskusni postopki - 3. del: Snežne freze s
sedežem za voznika - Dopolnilo A1 (ISO 8437-3:2019/Amd 1:2026)
Snow throwers - Safety requirements and test procedures - Part 3: Ride-on snow
throwers - Amendment 1 (ISO 8437-3:2019/Amd 1:2026)
Schneefräsen - Sicherheitsanforderungen und Prüfverfahren - Teil 3: Schneefräsen mit
Fahrersitz - Änderung 1 (ISO 8437-3:2019/Amd 1:2026)
Chasse-neige - Exigences de sécurité et essais - Partie 3: Chasse-neige à conducteur
porté - Amendement 1 (ISO 8437-3:2019/Amd 1:2026)
Ta slovenski standard je istoveten z: EN ISO 8437-3:2021/A1:2026
ICS:
43.160 Vozila za posebne namene Special purpose vehicles
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 8437-3:2021/A1
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2026
EUROPÄISCHE NORM
ICS 43.160
English Version
Snow throwers - Safety requirements and test procedures
- Part 3: Ride-on snow throwers - Amendment 1 (ISO
8437-3:2019/Amd 1:2026)
Chasse-neige - Exigences de sécurité et essais - Partie Schneefräsen - Sicherheitsanforderungen und
3: Chasse-neige à conducteur porté - Amendement 1 Prüfverfahren - Teil 3: Schneefräsen mit Fahrersitz -
(ISO 8437-3:2019/Amd 1:2026) Änderung 1 (ISO 8437-3:2019/Amd 1:2026)
This amendment A1 modifies the European Standard EN ISO 8437-3:2021; it was approved by CEN on 23 April 2026.

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
© 2026 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8437-3:2021/A1:2026 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive2006/42/EC aimed to be covered . 4

European foreword
This document (EN ISO 8437-3:2021/A1:2026) has been prepared by Technical Committee ISO/TC 23
"Tractors and machinery for agriculture and forestry" in collaboration with Technical Committee
CEN/TC 144 “Tractors and machinery for agriculture and forestry” the secretariat of which is held by
AFNOR.
This Amendment to the European Standard EN ISO 8437-3:2021 shall be given the status of a national
standard, either by publication of an identical text or by endorsement, at the latest by November 2026,
and conflicting national standards shall be withdrawn at the latest by November 2026.
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 8437-3:2019/Amd 1:2026 has been approved by CEN as EN ISO 8437-3:2021/A1:2026
without any modification.
Annex ZA
(informative)
Relationship between this European Standard and the essential
requirements of Directive2006/42/EC aimed to be covered
This European Standard has been prepared under a Commission’s standardization request “M/396
Mandate to CEN and CENELEC for Standardisation in the field of machinery" to provide one voluntary
means of conforming to essential requirements of Directive 2006/42/EC of the European Parliament
and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast).
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 I of Directive
2006/42/EC
The relevant Essential Clause(s)/sub-clause(s) of this Remarks/Notes
Requirements of Directive EN
2006/42/EC
1. ESSENTIAL HEALTH AND
SAFETY REQUIREMENTS
1.1.2. Principles of safety
integration
1.1.2(a) 4,5,6
1.1.2(c) 4,5,6, annex A
1.1.2(d) (if relevant) 5, A.2.3
1.1.2(e) (if relevant) 5, A.2.6
1.1.3. Materials and products 4.3, 4.4, 4.5, 5, 6.1, 6.2
1.1.5. Design of machinery to 4.2, 4.4, 4.5, 4.6, 5, 6.
facilitate its handling
1.1.6. Ergonomics 4.2, 5, 6
1.1.7. Operating positions 4.2, 4.3.3, 5
1.1.8. Seating 6
1.2. CONTROL SYSTEMS
1.2.1. Safety and reliability of 4.2, 5, 6
control systems
1.2.2. Control devices 4.2, 5, 6
1.2.3. Starting 4.2.2.1
1.2.4.1. Normal stop 4.2.2.2, 6.1.
The relevant Essential Clause(s)/sub-clause(s) of this Remarks/Notes
Requirements of Directive EN
2006/42/EC
1.2.4.2. Operational stop 4.2.2.2, 6.2.
1.2.4.4. Assembly of machinery 4.2.8, 4.2.3.3
1.2.5. Selection of control or 4.2.3, 4.2.4, 4.2.5, 4.2.6, 4.2.7 and
operating modes 4.2.8
1.2.6. Failure of the power 4.2.2.1, 4.2.2.5, 4.2.8.2
supply
1.3. PROTECTION AGAINST
MECHANICAL HAZARDS
1.3.1. Risk of loss of stability 6.3.
1.3.2. Risk of break-up during 4.3.1
operation
1.3.3. Risks due to falling or 4.3.1
ejected objects
1.3.4. Risks due to surfaces, 4.1, 4.3.1, 4.3.2
edges or angles
1.3.6. Risks related to variations 4.2.2.1, 4.2.2.3, 4.2.2.4, 4.2.2.6
in operating conditions
1.3.7. Risks related to moving 4.2.3, 4.3
parts
1.3.8.1. Moving transmission 4.3, 4.6
parts
1.3.8.2. Moving parts involved in 4.3.
the process
1.3.9. Risks of uncontrolled 4.2.3, 4.3, 5, 6
movements
1.4. REQUIRED
CHARACTERISTICS OF GUARDS
AND PROTECTIVE DEVICES
1.4.1. General requirements 4.3
1.4.2.1. Fixed guards 4.3, 4.6
1.4.2.3. Adjustable guards 4.3
restricting access
1.4.3. Special requirements for 4.2.1, 4.2.3.1 and 4.2.5.4
protective devices
1.5. RISKS DUE TO OTHER
HAZARDS
1.5.1. Electricity supply 4.5.
1.5.2. Static electricity 4.3
The relevant Essential Clause(s)/sub-clause(s) of this Remarks/Notes
Requirements of Directive EN
2006/42/EC
1.5.3. Energy supply other than 4.4
electricity
1.5.5. Extreme temperatures 4.3
1.5.6. Fire 4.4, 4.5
1.5.7. Explosion 4.4, 4.5
1.5.8. Noise 4.9.
1.5.9. Vibrations 4.10.
1.5.10. Radiation 4.8
1.5.11. External radiation 4.8
1.5.13. Emissions of hazardous 4.3.3, 4.4, 5
materials and substances
...