CEN/TC 144 - Tractors and machinery for agriculture and forestry

This document specifies principles for the design of agricultural machinery and tractors utilizing systems (perception, supervisory or other) to prevent unintended excursions beyond the boundary of the autonomous operating zone which are used in agricultural applications and that have partially automated, semi-autonomous and autonomous functions. Additionally, it provides guidance on the type of information to be provided by the manufacturer on safe working practices (including information about residual risks).
The autonomous operating zone itself is not within the scope of this document. The autonomous operating zone can include, for example, considerations for the autonomous operating zone location, physical or virtual boundaries, physical boundary types (natural or man-made) and the associated risks with the systems (perception, supervisory or other) to prevent unintended excursions beyond the boundary of the autonomous operating zone design.
The purpose of this document is to assist in the provision of more specific safety requirements, means of verification and information for use to ensure an appropriate level of safety for agricultural machinery and tractors with partially automated, semi-autonomous and autonomous functions used in a specified way.
This document deals with the significant hazards relevant to agricultural machinery and tractors with partially automated, semi-autonomous and autonomous functions when used as intended and under the conditions of misuse reasonably foreseeable by the manufacturer during normal operation and service.
Applicability of the design principles and any additional detailed requirements for design, verification, validation or information for use are outside the scope of this document. When risk assessment concludes that hazards are not significant hazards, the principles of this document do not apply.
NOTE          Safety requirements for specific non-automated functions of agricultural machinery and tractors can be available in machine-specific type-C standards.
This document is not applicable to:
—     forestry applications;
—     operations on public roads including relevant requirements for braking and steering systems.
This document is not applicable to agricultural machinery and tractors which are manufactured before the date of its publication, or to systems applied to agricultural machinery and tractors put into use before the date of its publication.

This document specifies principles for the design of agricultural machinery and tractors that are used in agricultural applications and that have partially automated, semi-autonomous and autonomous functions. Additionally, it provides guidance on the type of information to be provided by the manufacturer on safe working practices (including information about residual risks).
The purpose of this document is to assist in the provision of more specific safety requirements, means of verification and information for use to ensure an appropriate level of safety for agricultural machinery and tractors with partially automated, semi-autonomous and autonomous functions used in a specified way.
This document deals with the significant hazards relevant to agricultural machinery and tractors with partially automated, semi-autonomous and autonomous functions when used as intended and under the conditions of misuse reasonably foreseeable by the manufacturer during normal operation and service.
Applicability of the design principles and any additional detailed requirements for design, verification, validation or information for use are outside the scope of this document. When risk assessment concludes that hazards are not significant hazards, the principles of this document do not apply.
NOTE          Safety requirements for specific non-automated functions of agricultural machinery and tractors can be available in machine-specific type-C standards.
This document is not applicable to:
—     forestry applications;
—     operations on public roads including relevant requirements for braking and steering systems.
This document is not applicable to agricultural machinery and tractors which are manufactured before the date of its publication, or to systems applied to agricultural machinery and tractors put into use before the date of its publication.

This document specifies principles for the design of obstacle protective systems used in agricultural machinery and tractors that are used in agricultural applications and that have partially automated, semi-autonomous and autonomous functions. Additionally, it provides guidance on the type of information to be provided by the manufacturer on safe working practices (including information about residual risks).
The purpose of this document is to assist in the provision of more specific safety requirements, means of verification and information for use to ensure an appropriate level of safety for agricultural machinery and tractors with partially automated, semi-autonomous and autonomous functions used in a specified way.
This document deals with the significant hazards relevant to agricultural machinery and tractors with partially automated, semi-autonomous and autonomous functions when used as intended and under the conditions of misuse reasonably foreseeable by the manufacturer during normal operation and service.
Applicability of the design principles and any additional detailed requirements for design, verification, validation or information for use are outside the scope of this document. When risk assessment concludes that hazards are not significant hazards, the principles of this document do not apply.
NOTE          Safety requirements for specific non-automated functions of agricultural machinery and tractors can be available in machine-specific type-C standards.
This document is not applicable to:
—     forestry applications;
—     operations on public roads including relevant requirements for braking and steering systems.
This document is not applicable to agricultural machinery and tractors which are manufactured before the date of its publication, or to systems applied to agricultural machinery and tractors put into use before the date of its publication.

This document specifies principles for verification methods and validation principles of agricultural machinery and tractors that are used in agricultural applications and that have partially automated, semi-autonomous and autonomous functions.
The purpose of this document is to assist in the provision of more specific safety requirements, means of verification and information for use to ensure an appropriate level of safety for agricultural machinery and tractors with partially automated, semi-autonomous and autonomous functions used in a specified way.
This document deals with the significant hazards relevant to agricultural machinery and tractors with partially automated, semi-autonomous and autonomous functions when used as intended and under the conditions of misuse reasonably foreseeable by the manufacturer during normal operation and service.
Applicability of the design principles and any additional requirements, for design, verification, validation or information for use are outside the scope of this document. When risk assessment concludes that hazards are not significant hazards, the principles of this document do not apply.
NOTE          Safety requirements for specific non-automated functions of agricultural machinery and tractors can be available in machine-specific type-C standards.
This document is not applicable to:
—     forestry applications;
—     operations on public roads including relevant requirements for braking and steering systems.
This document is not applicable to agricultural machinery and tractors which are manufactured before the date of its publication, or to systems applied to agricultural machinery and tractors put into use before the date of its publication.

This document specifies requirements and the means for their verification for the design and performance of aerial fixed wing and rotary aircraft spray systems for agriculture, forestry, turf, and vegetation control in transport access ways (such as gas and electric lines) with regard to minimizing the potential risk of environmental contamination during use, including misuse foreseeable by the manufacturer.
It is intended to be used with ISO 16119-1:2013, which gives general requirements common to all the sprayer types covered by ISO 16119. When requirements of this document are different from those stated in ISO 16119-1:2013, the requirements of this document take precedence over the requirements of ISO 16119-1:2013 for machines within the scope of this document.
This document does cover safety of aerial spray equipment not covered by ISO 4254 series.
This document is not applicable to sprayers manufactured before the date of its publication, or unmanned aerial vehicles (such as drones).

This document applies to front and rear-mounted implements on agricultural or forestry tractors, self-propelled machines, trailers or on towed machinery.
This document specifies the requirements for lighting and light-signalling devices to be installed on the implement for safe on-road use.
NOTE   Mounted implements are considered to be interchangeable equipment and become part of the tractor, self-propelled machine, trailer or towed machine to which they are attached.
This document describes the installation of lighting and light signalling devices on mounted implements when the vehicle's lighting and signalling devices cannot comply with the applicable road regulation requirements.

This document sets out general principles for the design and development of safety-related parts of control systems (SRP/CS) on tractors used in agriculture and forestry and on self-propelled ride-on machines and mounted, semi-mounted and trailed machines used in agriculture. It can also be applied to mobile municipal equipment (e.g. street-sweeping machines).
This document is not applicable to:
—          aircraft and air-cushion vehicles used in agriculture;
—          lawn and garden equipment.
This document specifies the characteristics and categories required of SRP/CS for carrying out their safety-related functions. It does not identify performance levels for specific applications.
NOTE 1    Machine specific type-C standards can specify performance levels (AgPL) for safety-related functions in machines within their scope. Otherwise, the specification of AgPL is the responsibility of the manufacturer.
This document is applicable to the safety-related parts of electrical/electronic/programmable electronic systems (E/E/PES), as these relate to mechatronic systems. It covers the possible hazards caused by malfunctioning behaviour of E/E/PES safety-related systems, including interaction of these systems. It does not address hazards related to electric shock, fire, smoke, heat, radiation, toxicity, flammability, reactivity, corrosion, release of energy, and similar hazards, unless directly caused by malfunctioning behaviour of E/E/PES safety-related systems. It also covers malfunctioning behaviour of E/E/PES safety-related systems involved in protective measures, safeguards, or safety-related functions in response to non-E/E/PES hazards.
Examples included within the scope of this document:
—          SRP/CS limiting current flow in electric hybrids to prevent insulation failure/shock hazards;
—          electromagnetic interference with the SRP/CS;
—          SRP/CS designed to prevent fire.
Examples not included in the scope of this document:
—          insulation failure due to friction that leads to electric shock hazards;
—          nominal electromagnetic radiation impacting nearby machine control systems;
—          corrosion causing electric cables to overheat.
This document is not applicable to non-E/E/PES systems (e.g. hydraulic, mechanic or pneumatic).
NOTE 2    See also ISO 12100 for design principles related to the safety of machinery.
This document is not applicable to safety related parts of control systems manufactured before the date of its publication.

This document sets out general principles for the design and development of safety-related parts of control systems (SRP/CS) on tractors used in agriculture and forestry and on self-propelled ride-on machines and mounted, semi-mounted and trailed machines used in agriculture. It can also be applied to mobile municipal equipment (e.g. street-sweeping machines).
This document is not applicable to:
—          aircraft and air-cushion vehicles used in agriculture;
—          lawn and garden equipment.
This document specifies the characteristics and categories required of SRP/CS for carrying out their safety-related functions. It does not identify performance levels for specific applications.
NOTE 1    Machine specific type-C standards can specify performance levels (AgPL) for safety-related functions in machines within their scope. Otherwise, the specification of AgPL is the responsibility of the manufacturer.
This document is applicable to the safety-related parts of electrical/electronic/programmable electronic systems (E/E/PES), as these relate to mechatronic systems. It covers the possible hazards caused by malfunctioning behaviour of E/E/PES safety-related systems, including interaction of these systems. It does not address hazards related to electric shock, fire, smoke, heat, radiation, toxicity, flammability, reactivity, corrosion, release of energy, and similar hazards, unless directly caused by malfunctioning behaviour of E/E/PES safety-related systems. It also covers malfunctioning behaviour of E/E/PES safety-related systems involved in protective measures, safeguards, or safety-related functions in response to non-E/E/PES hazards.
Examples included within the scope of this document:
—          SRP/CS's limiting current flow in electric hybrids to prevent insulation failure/shock hazards;
—          electromagnetic interference with the SRP/CS;
—          SRP/CS's designed to prevent fire.
Examples not included in the scope of this document:
—          insulation failure due to friction that leads to electric shock hazards;
—          nominal electromagnetic radiation impacting nearby machine control systems;
—          corrosion causing electric cables to overheat.
This document is not applicable to non-E/E/PES systems (e.g. hydraulic, mechanic or pneumatic).
NOTE 2    See also ISO 12100 for design principles related to the safety of machinery.
This document is not applicable to safety related parts of control systems manufactured before the date of its publication.

This document sets out general principles for the design and development of safety-related parts of control systems (SRP/CS) on tractors used in agriculture and forestry and on self-propelled ride-on machines and mounted, semi-mounted and trailed machines used in agriculture. It can also be applied to mobile municipal equipment (e.g. street-sweeping machines).
This document is not applicable to:
—          aircraft and air-cushion vehicles used in agriculture;
—          lawn and garden equipment.
This document specifies the characteristics and categories required of SRP/CS for carrying out their safety-related functions. It does not identify performance levels for specific applications.
NOTE 1    Machine specific type-C standards can specify performance levels (AgPL) for safety-related functions in machines within their scope. Otherwise, the specification of AgPL is the responsibility of the manufacturer.
This document is applicable to the safety-related parts of electrical/electronic/programmable electronic systems (E/E/PES), as these relate to mechatronic systems. It covers the possible hazards caused by malfunctioning behaviour of E/E/PES safety-related systems, including interaction of these systems. It does not address hazards related to electric shock, fire, smoke, heat, radiation, toxicity, flammability, reactivity, corrosion, release of energy, and similar hazards, unless directly caused by malfunctioning behaviour of E/E/PES safety-related systems. It also covers malfunctioning behaviour of E/E/PES safety-related systems involved in protective measures, safeguards, or safety-related functions in response to non-E/E/PES hazards.
Examples included within the scope of this document:
—          SRP/CS limiting current flow in electric hybrids to prevent insulation failure/shock hazards;
—          electromagnetic interference with the SRP/CS;
—          SRP/CS designed to prevent fire.
Examples not included in the scope of this document:
—          insulation failure due to friction that leads to electric shock hazards;
—          nominal electromagnetic radiation impacting nearby machine control systems;
—          corrosion causing electric cables to overheat.
This document is not applicable to non-E/E/PES systems (e.g. hydraulic, mechanic or pneumatic).
NOTE 2    See also ISO 12100 for design principles related to the safety of machinery.
This document is not applicable to safety related parts of control systems manufactured before the date of its publication.

This document specifies the concept phase of the development of safety-related parts of control systems (SRP/CS) on tractors used in agriculture and forestry and on self-propelled ride-on machines and mounted, semi-mounted and trailed machines used in agriculture. It can also be applied to mobile municipal equipment (such as street-sweeping machines).
This document is not applicable to:
—          aircraft and air-cushion vehicles used in agriculture;
—          lawn and garden equipment.
This document specifies the characteristics and categories required of SRP/CS for carrying out their safety-related functions. It does not identify performance levels for specific applications.
NOTE 1    Machine specific type-C standards can specify performance levels (AgPL) for safety-related functions in machines within their scope. Otherwise, the specification of AgPL is the responsibility of the manufacturer.
This document is applicable to the safety-related parts of electrical/electronic/programmable electronic systems (E/E/PES), as these relate to mechatronic systems. It covers the possible hazards caused by malfunctioning behaviour of E/E/PES safety-related systems, including interaction of these systems. It does not address hazards related to electric shock, fire, smoke, heat, radiation, toxicity, flammability, reactivity, corrosion, release of energy, and similar hazards., unless directly caused by malfunctioning behaviour of E/E/PES safety-related systems. It also covers malfunctioning behaviour of E/E/PES safety-related systems involved in protection measures, safeguards, or safety-related functions in response to non-E/E/PES hazards.
Examples included within the scope of this document:
—          SRP/CS's limiting current flow in electric hybrids to prevent insulation failure/shock hazards;
—          electromagnetic interference with the SRP/CS;
—           SRP/CS's designed to prevent fire.
Examples not included within the scope of this document:
—          insulation failure due to friction that leads to electric shock hazards;
—          nominal electromagnetic radiation impacting nearby machine control systems;
—          corrosion causing electric cables to overheat.
This document is not applicable to non-E/E/PES systems (such as hydraulic, mechanic or pneumatic).
NOTE 2    See also ISO 12100 for design principles related to the safety of machinery.
This document is not applicable to safety-related parts of control systems manufactured before the date of its publication.

This document specifies basic test and condition requirements for deflection pulleys and sling gear which are attached to ropes and rope end connectors in forestal applications.
It is applicable to forestal hauling operations including rope-assisted felling.
This document is applicable to the following elements, sling gear and fastening elements:
-   deflection pulleys used in forestal hauling operation (see 3.22);
-   choker ropes;
-   choker chains;
-   radio-controlled chokers;
-   shackles;
-   round slings/tree protectors;
-   tree towing ropes;
-   rope slide hooks/rope sliders/choker hooks.
It is not applicable to the following sling gear:
-   the functional safety of radio-controlled chokers;
-   non-sheathed tree towing ropes made of synthetic fibres;
-   slings and deflection pulleys for the function and structure of mobile yarders as defined in EN 16517:2021 (e.g. for the installation of the haul-back line).

This document specifies safety requirements and measures for verification for the design, construction, transporting and commissioning of portable, combustion-engine, hand-held chain-saws. The chain-saws are intended to be used for forest work by only one operator, with the right hand on the rear handle and left hand on the front handle.
Dismantling and scrapping of the product is not covered by this document. Methods for the elimination or reduction of hazards arising from the use of these machines and the type of information on safe working practices to be provided by the manufacturer are specified.
This document deals with all significant hazards, hazardous situations and hazardous events, with the exception of kickback and balance for machines with an engine displacement of more than 80 cm3, relevant to these machines when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer (see Annex A).
This document is applicable to chain-saws manufactured after its date of publication.

This document specifies safety requirements and measures for verification for the design, construction, transporting and commissioning for tree service of portable, combustion-engine, hand-held chain-saws having a maximum mass of 4,3 kg (without the guide bar and saw-chain and with tanks empty).
The chain-saws are intended to be used, with the right hand on the rear handle and left hand on the front handle, by a trained operator.
Dismantling and scrapping of the product is not covered by this document. Methods for the elimination or reduction of hazards arising from the use of these machines and the type of information on safe working practices to be provided by the manufacturer are specified.
This document deals with all significant hazards, hazardous situations and hazardous events relevant to these machines when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer (see Annex B).
This document is applicable to chain-saws manufactured after its date of publication.
NOTE      Figure 1 shows an example of a chain-saw within the scope of this document.

This document, intended to be used together with ISO 4254-1, specifies the safety requirements and their verification for the design and construction of the following types of root crop harvesting machines trailed, mounted or self-propelled:
—    sieving harvesters,
—    root lifting harvesters,
—    top lifting harvesters,
which carry out more than one of the following operations: haulm/leaf topping, digging/taking-in/lifting, cleaning, conveying and unloading of root crops.
This document is also applicable for haulm/leaf toppers used individually.
This document is not applicable to cleaner-loaders which operate from a heap of beet. For these type of machines, additional hazards are, at present, not dealt with in this document.
In addition, it specifies the type of information on safe working practices to be provided by the manufacturer.
The list of significant hazards covered in this document is given in Annex A. It also indicates the hazards which have not been dealt with.
Environmental aspects have not been considered in this document. Noise has been considered partly in this document.
This document applies primarily to machines which are manufactured after the date of its publication.

This document gives safety requirements and measures for their verification for the design and construction of portable hand-held, powered brush-cutters and grass-trimmers (hereafter called machines) having an integral combustion engine as their power unit and mechanical power transmission between the power source and the cutting attachment. Methods for the elimination or reduction of hazards arising from the use of these machines and the type of information on safe working practices to be provided by the manufacturer are specified.
This document deals with all significant hazards, hazardous situations and hazardous events relevant to these machines, as well as when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer.
This document is not applicable to machines equipped with metallic cutting attachments consisting of more than one piece, such as pivoting chains or flail blades.
NOTE       See Annex C for a list of significant hazards.
This document is applicable to portable, hand-held, powered brush-cutters and grass-trimmers manufactured after its date of publication.

This document defines the dimensions and specifies the performance and safety requirements for traction aid winches used in forestry for assisting supported machines while going uphill and downhill (pulling and braking).
This document is applicable to fixed and detachable winches and their components, connections and communications, which are used with mobile and self-propelled forestry machinery as defined in ISO 6814:2009 and earth moving machinery as defined in ISO 6165:2012. It is also applicable to remote traction aid winch systems which are installed on a position away from the supported machine. In addition, this document defines requirements for the assembly of supported machine and traction aid winch. It is not applicable to winches which are not using a controlled rope force while going downhill and winches used for skidding, hoisting operations on cranes, draglines, high lead logging, rope logging systems or yarding. The kind of prime mover used to drive a traction aid winch does not limit the applicability of this document. This document is intended to be applied to traction aid systems used on machines where, without use of these systems, the machine remains stationary on slopes under its independent control (see Annex E).
Forestry machines, as defined in ISO 6814:2009, that are used as anchor or supported machines are not in the scope of this document. Requirements for the safety of many types of supported machines are within the scope of ISO 11850:2011.
This document is not applicable to traction aid winches manufactured before the date of its publication.

This document specifies safety requirements, and measures for their verification, for the design and construction of portable, hand-held, powered brush-cutters and grass-trimmers with a backpack-mounted combustion engine power source and mechanical power transmission between the power source and the cutting attachment (hereafter referred to as “machine”). Methods for the elimination or reduction of hazards arising from the use of these machines and the type of information on safe working practices to be provided by the manufacturer are specified.
This document, taken together with the relevant clauses of ISO 11806-1:2021 (see 4.1), deals with all significant hazards, hazardous situations and hazardous events, with the exception of whole-body vibration from the backpack power unit, relevant to these machines when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer.
NOTE 1    A standardized test procedure for measuring whole-body vibration from the backpack power unit is not available at the time of publication.
NOTE 2    See Annex A, together with ISO 11806-1:2021, Annex A, for a list of significant hazards.
This document is applicable to portable, hand-held, powered brush-cutters and grass-trimmers manufactured after its date of publication.
This document is not applicable to machines equipped with metallic cutting attachments consisting of more than one piece, such as pivoting chains or flail blades.

This document gives safety requirements, and the means of verification, for the design and construction of mobile yarders for logging of forest products and their mounting. It counts for all logging operations with cable yarders both in sloped and flat terrain. In addition, it specifies the type of information on safe working practices (including residual risks) meant to be provided by the manufacturer.
It deals with the significant hazards (as listed in Table 1), hazardous situations and events relevant to mobile yarders used as intended and under the conditions of misuse foreseeable by the manufacturer (see Clauses 4 and 5).
Emission of noise (with regard to airborne noise) is not covered by this document.
It is not applicable to:
-   rope splicing;
-   ancillary loaders or cable cranes;
-   cableways for material transport (other than wood); and
-   skidder winches (skidding).
The specifications of cabin in this context are only relevant for the yarder or a yarder-loader combination. The cabin and the chassis of the vehicle (prime mover), to which the yarder is mounted are not part of this document.
This document is not applicable to mobile yarders manufactured before the date of its publication.

This document specifies a vibration test code for determining, efficiently and under standardized conditions, the magnitude of vibration at the handles of portable hand-held, internal-combustion-engine-powered forest and garden machinery, including chain-saws, brush-cutters, grass-trimmers, edgers, pole-mounted powered pruners, hedge-trimmers and garden-blowers.
Although the magnitudes measured are obtained in an artificial operation, they nevertheless give an indication of the values to be found in a real work situation.
Vibration test codes, as described in this document, enable the manufacturer to verify the effort regarding low vibration design.

2021-11-08 JF:via decision BT C204/2021, taken on 2021-11-03, CEN/BT approved  revised Annex ZA of the EN. EN under publication.
2021-02-18 JF: at the meeting held on 2021-02-17 with French Authorities, HAS Consultant and ISO and CEN representatives the LoC assessment at 2nd FV was resolved
2021-02-01 TAN: The ballot is put on hold in ISO. Ballot cancelled in CEN.
2021-01-06 JF: through decision C224/2020, CEN/BT approved the 2nd vote
2020-07-10 JF: CEN and ISO/TCs intend to have a 2nd vote in order to address LoC assessment as the changes are technical. CCMC asked CEN/TC to launch the ballot on 2nd vote.
2020-06-30 JF: CEN/TC Secretariat informed about the need to revise the Annex ZA in order to address the concerns of market surveillance authorites. The Annex ZA is intended to be revised after the publication of ISO standard

This document specifies safety requirements and measures for their verification for the design and construction of portable, hand-held, pole-mounted powered pruners (hereafter named “machine”), including extendable and telescopic machines, having an integral combustion engine as their power source. These machines use a power transmission shaft to transmit power to a cutting attachment consisting of a saw-chain and guide bar, a reciprocating saw blade or a single-piece circular saw blade with a 205 mm maximum outside diameter. Methods for the elimination or reduction of hazards arising from the use of these machines and the type of information on safe working practices to be provided by the manufacturer are specified.
This document deals with all significant hazards, hazardous situations or hazardous events with the exception of electric shock from contact with overhead electric lines (apart from warnings and advice for inclusion in the instructions), relevant to these machines when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer (see Annex A).
This document is applicable to portable, hand-held, pole-mounted powered pruners manufactured after its date of publication.
Brush cutters with a circular saw blade are not included in the scope of this document.
NOTE      Brush cutter requirements are outlined in ISO 11806-1:2021.

This document specifies safety requirements and measures for their verification for the design and construction of portable, hand-held, pole-mounted powered pruners with a backpack power unit (hereafter referred to as “machine”). These machines use a power transmission shaft to transmit power to a cutting attachment consisting of a combination of saw-chain and guide bar, a reciprocating saw blade or a single-piece circular saw blade with a 205 mm maximum outside diameter. Methods for the elimination or reduction of hazards arising from the use of these machines and the type of information on safe working practices to be provided by the manufacturer are specified.
This document, together with the relevant sections of ISO 11680-1:2021, deals with all significant hazards, hazardous situations or hazardous events, with the exception of electric shock from contact with overhead electric lines (apart from warnings and advices for inclusion in the instructions) and whole-body vibration from the backpack power unit, relevant to these machines when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer.
NOTE 1   A standardized test procedure for measuring whole-body vibration from the backpack power unit is not available at the date of publication.
NOTE 2   See Annex A for a list of significant hazards.
This document is applicable to portable, hand-held, pole-mounted powered pruners with backpack power unit manufactured after its date of publication.

2021-10-01: This A11 includes revised Annex ZA to EN ISO 4254-6:2020, both WIs will be presented to  EC for citation

1.1   This European Standard, when used together with EN ISO 4254 1 and EN 15811, specifies safety requirements and measures for self-propelled rough-terrain work platforms for orchard’s operations (WPO) operating at a maximum of 3 m high as defined in 3.1, where the vertical projection of the centre of the area of the platform in all platform configurations at the maximum chassis inclination specified by the manufacturer is always inside the tipping lines, used in agriculture, designed to work on unimproved natural terrain and/or disturbed terrain and intended to move at least two persons to working positions in an orchard where they are carrying out fruit picking, thinning out, pruning, or other operations related to orchard from the work platform.
NOTE   For examples of rough-terrain work platforms for orchard’s operations (WPO), see Figures E. 1 to E.3.
This European Standard describes methods for the elimination or reduction of hazards arising from the intended use of these machines in the course of normal operation and service, except hazards related to conveyor belts and elevators for the bin. In addition, it specifies the type of information on safe working practices (including residual risks) to be provided by the manufacturer.
When requirements of this document are different from those which are stated in EN ISO 4254 1, the requirements of this document take precedence over the requirements of EN ISO 4254 1 for machines that have been designed and built according to the provisions of this document.
This European Standard, taken together with EN ISO 4254 1 and EN 15811, deals with all the significant hazards, hazardous situations and events (as listed in Table 1) relevant to WPOs, when they are used as intended and under the conditions of misuse foreseeable by the manufacturer.
It does not cover the hazards arising from:
a)   use in potentially explosive atmospheres;
b)   getting on and off the work platform at changing levels;
c)   environmental aspects;
d)   road safety.
1.2   This European Standard does not apply to:
a)   Mobile Elevating Work Platforms (MEWPs) (see EN 280);
NOTE 1   Figure E.4 gives an example of this type of machine.
b)   boom-type MEWPs (see EN 280);
NOTE 2   Figure E.5 and E.6 give examples of this type of machine.
c)   tail lifts (see EN 1756-1 and EN 1756-2);
d)   mast climbing work platforms (see EN 1495);
e)   lifting tables (see EN 1570-1);
f)   aircraft ground support equipment (see e.g. EN 1915-1 and EN 1915-2);
g)   elevating operator positions on industrial trucks (see EN 1726-2);
h)   unguided work cages suspended from lifting appliances (see e.g. EN 1808);
i)    machines having centre of the area of the platform outside the tipping lines.
NOTE 3   Figure E.7 gives an example of this type of machine.

This document, used together with EN ISO 4254-1, specifies the safety requirements and their verification for the design and construction of mounted, semi-mounted, trailed or self-propelled machines that have a combination of two or more of the following functions: loading, mixing, chopping and distributing silage and/or other feedstuffs or materials used for animal bedding such as straw, to be used by one operator only. It includes those fitted with a built-in loading crane. In addition, it specifies the type of information on safe working practices (including residual risks) to be provided by the manufacturer.
This document applies only to machines that have the following functional combinations:
-   mixing and distributing functions;
-   mixing, chopping and distributing functions;
-   loading, mixing and distributing functions;
-   loading, mixing, chopping and distributing functions;
-   chopping and distributing functions; or
-   loading, chopping and distributing functions.
Silage block cutters, even if they carry out a single function, are covered by this document.
This document does not apply to:
-   machines which pick up green fodder directly from the field;
-   loading cranes;
-   silage buckets;
-   round or rectangular unbalers.
NOTE 1   Loading cranes are dealt with in EN 12999:2011+A2:2018.
NOTE 2   Autonomous silage loading, mixing and/or chopping and distributing machines (robotic feed systems) will be dealt with in a separate standard (under preparation).
This document deals with the significant hazards, hazardous situations and events relevant to machines for loading, mixing and/or chopping and distributing silage and/or other feedstuffs, when they are used as intended and under the conditions foreseen by the manufacturer as listed in Clause 4, except for the hazards arising from:
-   failure of the control circuit;
-   inadequate seating;
-   inadequate lighting;
-   travelling of machinery;
-   break-up of parts rotating at high speed;
-   cutting hazard during service on sharp parts (e.g. blades of the mixing and/or chopping device).
It is not applicable to environmental hazards (except noise).
It does not deal with stability when travelling.
This document is not applicable to machines for loading, mixing and/or chopping and distributing silage and/or other feedstuffs which are manufactured before the date of publication of this document by CEN.

This document provides additional national and regional requirements applicable to combustion engine powered pedestrian-controlled and ride-on snow throwers. It is intended to be used with ISO 8437-1, ISO 8437-2 and ISO 8437-3 to achieve the full requirements and means for pedestrian-controlled and ride-on snow throwers.
The ISO 8437 series deals with significant hazards, hazardous situations and events relevant to snow throwers used as intended and under the conditions reasonably foreseeable by the manufacturer.
It does not apply to the following:
—         electrically powered and battery powered snow throwers;
—         hand-held snow throwers;
—         airport or highway snow removal machines and equipment;
—         machines intended for use in potentially explosive atmospheres.
It does not deal with hazards related to the following:
—         battery circuits exceeding 42 V;
—         mains connected starting motor;
—         magneto grounding circuits;
—         working environment;
—         electromagnetic compatibility.
The ISO 8437 series is not applicable to machines that were manufactured before the date of its publication.

This document specifies safety requirements applicable to combustion engine powered ride-on snow throwers. It is intended to be used with ISO 8437-1 and ISO 8437-4 to achieve the full requirements and means for ride-on snow throwers.
The ISO 8437 series deals with significant hazards, hazardous situations and events relevant to snow throwers used as intended and under the conditions reasonably foreseeable by the manufacturer.
It does not apply to the following:
—         electrically powered and battery powered snow throwers;
—         hand-held snow throwers;
—         airport or highway snow removal machines and equipment;
—         machines intended for use in potentially explosive atmospheres.
It does not deal with hazards related to the following:
—         battery circuits exceeding 42 V;
—         mains connected starting motor;
—         magneto grounding circuits;
—         working environment;
—         electromagnetic compatibility.
The ISO 8437 series is not applicable to machines that were manufactured before the date of its publication.

This document defines terms and definitions and common test methods applicable to combustion engine powered pedestrian-controlled and ride-on snow throwers. It is intended to be used with ISO 8437-2, ISO 8437-3 and ISO 8437-4 to achieve the full requirements and means of verification for pedestrian-controlled and ride-on snow throwers.
The ISO 8437 series deals with significant hazards, hazardous situations and events relevant to snow throwers used as intended and under the conditions reasonably foreseeable by the manufacturer.
It does not apply to the following:
—          electrically powered and battery powered snow throwers;
—          hand-held snow throwers;
—          airport or highway snow removal machines and equipment;
—          machines intended for use in potentially explosive atmospheres.
It does not deal with hazards related to the following:
—          battery circuits exceeding 42 V;
—          mains connected starting motor;
—          magneto grounding circuits;
—          working environment;
—          electromagnetic compatibility.
The ISO 8437 series is not applicable to machines that were manufactured before the date of its

This document specifies safety requirements applicable to combustion engine powered pedestrian-controlled snow throwers. It is intended to be used with ISO 8437-1 and ISO 8437-4 to achieve the full requirements and means of verification for pedestrian-controlled snow throwers.
The ISO 8437 series deals with significant hazards, hazardous situations and events relevant to snow throwers used as intended and under the conditions reasonably foreseeable by the manufacturer.
It does not apply to the following:
—         electrically powered and battery powered snow throwers;
—         hand-held snow throwers;
—         airport or highway snow removal machines and equipment;
—         machines intended for use in potentially explosive atmospheres.
It does not deal with hazards related to the following:
—         battery circuits exceeding 42 V;
—         mains connected starting motor;
—         magneto grounding circuits;
—         working environment;
—         electromagnetic compatibility.
The ISO 8437 series is not applicable to machines that were manufactured before the date of its publication.

This document specifies a noise test code for determining, efficiently and under standardized conditions, the common noise emission characteristics of portable, hand-held, combustion engine powered forest and garden machines, and specific requirements for chain-saws, brush-cutters, grass-trimmers, edgers, pole-mounted powered pruners, hedge-trimmers and garden blowers/vacuums/knapsack mist blowers. Noise emission characteristics include the A-weighted emission sound pressure level at the operator position and the A-weighted sound power level.
Noise test codes as described in this document enable the manufacturer to verify the effort regarding low noise design.

2019-11-12 JF TC is reviewing editorially the Annex ZA and is preparing the information on significant changes to be put in the Foreword

This document specifies the requirements, test methods and verification of the inspection of aerial fixed wing and rotary aircraft spray systems for agriculture, forestry, turf, and vegetation control in transport access ways (such as gas and electric lines), with regard to minimizing the potential risk of environmental contamination during use.
This document applies only to manned aerial aircraft. It does not cover aircraft safety and design criteria for air worthiness, aircraft registration, pilot or operator requirements, all of which are specified separately by countries or regions.
This document relates mainly to the condition of the equipment with respect to its potential risk for the environment and its performance to achieve good applications.
The general requirements of ISO 16122-1 apply where appropriate, including for the protection of inspectors during an inspection.

This document, to be used together with ISO 4254-1, specifies the safety requirements and their verification for the design and construction of mounted, semi-mounted, trailed and self-propelled agricultural sprayers for use with plant protection products (PPP) and liquid fertilizer application, as placed on the market by the manufacturer and designed for a single operator only. In addition, it specifies the type of information on safe working practices (including residual risks) to be provided by the manufacturer.
When requirements of this document are different from those which are stated in ISO 4254-1, the requirements of this document take precedence over the requirements of ISO 4254-1 for machines that have been designed and built according to the provisions of this document.
This document, taken together with ISO 4254-1, deals with significant hazards, hazardous situations and events relevant to sprayers and liquid fertilizer distributors when they are used as intended and under the conditions foreseeable by the manufacturer (see Annex A), excepting the hazards arising from:
—          protection of the driver against spray when spraying (see Foreword);
—          automatically actuated height adjustment systems;
—          the environment, other than noise;
—          moving parts for power transmission except strength requirements for guards and barriers.
This document is not applicable to sprayers and liquid fertilizer distributors which are manufactured before the date of publication of this document.

This document specifies safety requirements and their verification, environmental requirements and related test methods, and minimum performance limits, for the design and construction of knapsack combustion engine-driven airblast sprayers as defined in 3.9.
It describes methods for the elimination or reduction of hazards arising from their use. In addition, it specifies the type of information on safe working practices to be provided by the manufacturer.
It addresses general operating parameters as well as the potential deposition of spray droplets under specified controlled conditions.
This document deals with all significant hazards, hazardous situations and events, excepting those arising from vibration transmitted to the back of the operator.
It is applicable to knapsack combustion engine-driven airblast sprayers when they are used as intended and under the conditions foreseeable by the manufacturer (see Table A.1).
It is not applicable to:
—          hydraulic pressure sprayers;
—          thermal sprayers;
—          cold foggers;
—          sprayers adapted for the application of dry material.
It is not applicable to knapsack combustion engine-driven airblast sprayers manufactured before the date of its publication. The requirements of this document applies to products manufactured 18 months after publication.

This document specifies safety requirements and their verification for the design and construction of power take-off (PTO) drive shafts and their guards linking a tractor or self-propelled machinery to the first fixed bearing of recipient machinery. It describes methods for the elimination or reduction of risks which need specific requirements including such risks arising from misuse, reasonably foreseeable by the manufacturer. It is applicable only to those PTO drive shafts and guards mechanically linked to the shaft by at least two bearings.
In addition, it specifies the type of information on safe working practices to be provided by the manufacturer.
This document does not deal with:
-   the guards totally covering, but not mechanically linked to, the PTO drive shaft;
-   the mechanical characteristics of PTO drive shafts, overrun devices and torque limiters;
-   general hazards which are dealt with in EN ISO 4254-1:2015 (see introduction).
Environmental aspects have not been considered in this document.
This document is not applicable to PTO drive shafts and their guards which are manufactured before the date of publication of this document by CEN.

This document specifies safety requirements and their verification for design and construction of, i.e. self-propelled, mounted, semi-mounted and trailed, wood chippers used in forestry, agriculture, horticulture and landscaping.
This document applies to chippers, used when stationary, which are manually loaded with wood through a horizontal or near horizontal infeed chute and where the infeed action is performed by the chipping components acting as infeed components or by separate integrated infeed components such as rollers or conveyors integral to the infeed chute. Wood chippers may be powered either by an external power take-off, hydraulics etc. or by an integral power source such as an internal combustion engine.
This document does not cover:
-   requirements relating to national road regulations arising from transport between work sites;
-   hazards arising from any self-propelled function;
-   hazards arising from the transmission of power from an external power source - e.g. power take-off drive shafts;
-   any machines where the infeed chute is fitted with an extension table or an integrated conveyor that is protruding beyond the outermost lower edge of the infeed chute and the Lower Protective Device of the infeed chute;
-   hazards arising from the engine pull starting of an integral power source;
-   hazards arising from mechanical loading;
-   vertical infeed chute chippers;
-   electromagnetic aspects of the chippers;
-   shredders/chippers to be covered by EN 13683;
-   any machines that are only loaded mechanically;
-   additional mechanical discharge systems for woodchips which are not part of the chipping mechanism e.g. conveyors.
For machines that can be both manually and mechanically loaded, this document is only covering the safety of the manual loading.
NOTE 1   Any additional requirements related to use with both mechanical and manual feed that could affect safe use or which are necessary to maintain the integrity of protective devices are outside the scope of this document. Such additional measures are intended to be determined by risk assessment carried out by the manufacturer.
This document deals with all significant hazards, hazardous situations and events relevant to wood chippers, when they are used as intended and under the conditions foreseeable by the manufacturer (see Annex A).
In addition, it specifies the type of information to be provided by the manufacturer on the safe use of these machines.
It is not applicable to environmental hazards (except noise).
NOTE 2   The noise test code described in this standard does not comply with the outdoor noise directive 2000/14/EC.
This document is not applicable to wood chippers which are manufactured before the date of publication of this document by CEN.

This document applies to wheeled and/or track-laying self-propelled agricultural and forestry vehicles when used on public roads. It specifies the definitions, construction and performance requirements and the means for verification of braking systems on vehicles with a maximum design speed not exceeding 60 km/h.
Following items are excluded from the scope of this document:
-   coupling force control;
-   endurance braking systems;
-   Anti-Lock Braking Systems and EBS;
-   vacuum braking systems;
-   safety related parts of complex electronic control systems;
-   trailer braking control systems.
NOTE   For assisted trailer braking the EU Regulation 2015/68 can be used but before including these requirements into this document, an additional review of 2015/68 is needed.

This European Standard specifies safety requirements and their verification for design and construction of pedestrian controlled motor mowers with rotary or reciprocating cutting means used in agricultural, forestry and landscaping to cut and/or mulch grass or similar plants or scrub and woody vegetation.
For the purposes of this standard the following types of pedestrian controlled machines are considered to be motor mowers:
-   flail mowers;
-   grassland mowers;
-   scrub clearing machines;
-   sickle bar mowers.
This standard applies also to multipurpose machines when used for cutting or mulching grass or scrub.
Note   When they are used for other operations (e.g. soil working) other standards can apply.
This standard does not cover lawn mowers (see EN ISO 5395 1, EN ISO 5395 2), engine driven brush cutters and grass trimmers (see EN ISO 11806) or other lawn maintenance equipment.
This document deals with significant hazards, hazardous situations and events, as listed in Annex A, relevant to pedestrian controlled motor mowers when used as intended and under conditions of misuse foreseeable by the manufacturer during normal operation and service. Additionally, it specifies the type of information to be provided by the manufacturer on safe working practices.
Environmental aspects (except noise) have not been considered in this standard.
This document is not applicable to motor mowers manufactured before the date of its publication.

This European Standard specifies safety requirements and their verification for the design and construction of trailers with a tipping body, balanced or semi-mounted, used in agriculture, as defined in 3.1. It includes also hook-lift trailers and trailers with conveyor device as defined in 3.9.
This European Standard does not deal with trailers equipped with pick-up devices and/or rear spreading devices.
Trailers with a load push/push-off device, slats or alternating moving floor may be removed from this standard, provided a new work item on loader wagons and forage transport wagons (prEN ISO 4254-17) is accepted.
This European Standard does not give Required Performance Levels for the identified safety functions.
This European Standard, taken together with EN ISO 4254-1, deals with the significant hazards, hazardous situations and events relevant to agricultural trailers, when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer (see Table A.1), excepting the hazards arising from:
-   hazards related to conveying devices other than those defined in 3.9.1 and 3.9.2, for example load push/push-off device;
-   hazards related to the environment and road safety;
-   hazards related to braking.
In addition, it specifies the type of information on safe working practices to be provided by the manufacturer.
This document is not applicable to trailers which are manufactured before the date of its publication as EN.

This document specifies safety requirements and measures for the verification of the design and construction of hand-held, integrally-driven combustion engine hedge trimmers (hereafter referred to as "hedge trimmers") designed to be used by a single operator for trimming hedges and bushes while utilizing one or more linear reciprocating cutter blades.
This document is also applicable to "split-boom" type hedge trimmers and to multi-purpose machines when configured as a hedge trimmer.
It establishes methods for the elimination or reduction of hazards arising from the use of the hedge trimmers. In addition, it specifies the type of information to be provided by the manufacturer on safe working practices.
This document deals with all significant hazards, hazardous situations and events relevant to powered hand-held hedge trimmers when they are used as intended and under the conditions of misuse that are reasonably foreseeable by the manufacturer (see Clause 4).
This document is not applicable to hedge trimmers with an engine displacement over 80 cm3, nor is it applicable to hedge trimmers manufactured before the date of its publication.

This European standard specifies the additional requirements for cableless control systems that are used in forestry machinery. The fundamental requirements are defined in the standard prEN 62745. Cableless control systems for the following forestry machines are treated in this standard:
-   forestry cable winches according to ISO 19472, winches for log splitters;
-   self-propelled machinery for forestry according to EN ISO 11850 (machines for felling, moving and debranching, forwarders, log loaders, skidders, processors, harvesting machines, mulchers as well as multipurpose machines of these construction types, as described in ISO 6814); the definitive part of the standard defines essential requirements for the driving function of the machine;
-   mobile yarders for timber logging corresponding to prEN 16517;
-   log splitters and combined firewood splitters according to EN 609 1:2016, 5.9.2.1 Chipping machines according to EN 13525 and chipping machines with mechanical feed systems for the production of woodchips and shredding /grinding machines;
-   forestry boom loader and similar devices that are used on self-propelled machinery and trailers for forestry according to EN ISO 11850 and, as indicated above, for timber transport, timber loading, the loading of forestry goods or forestry products as well as for the handling and arrangement of timber harvesters, felling attachments, machines for felling and moving, attachments, saw heads, gripper-saw combinations with or without load or similar devices and machines, insofar they are not treated in EN 12999. Forestry boom loader can be a component of the forestry machine on which they are mounted.

This document, to be used together with EN ISO 4254-1, specifies the safety requirements and their verification for the design and construction of semi-mounted, trailed and self-propelled slurry tankers, including their spreading or injecting devices, intended for spreading or injecting slurry which are operated by either pneumatic or mechanical power. In addition, it specifies the type of information on safe working practices to be provided by the manufacturer.
When requirements of this document are different from those which are stated in EN ISO 4254-1, the requirements of this document take precedence over the requirements of EN ISO 4254-1 for machines that have been designed and built according the provisions of this document.
This document, taken together with EN ISO 4254-1, deals with all the significant hazards, hazardous situations and events relevant to slurry tankers, when they are used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer (see Table A.1), excepting the hazards related to road safety (e.g. steering, braking).
Environmental aspects have not been considered in this document.
This document is not applicable to slurry tankers which are manufactured before the date of its publication as EN.

This document, intended to be used together with ISO 4254-1, specifies the safety requirements, and their verification for design and construction of mounted, semi-mounted, trailed or self-propelled seed drills, including the seeding function of combined seed and fertilizer drills, and seed drills with integrated and inseparable powered soil-working tools used in agriculture. In addition, it specifies the type of information on safe working practices (including residual risks) to be provided by the manufacturer.
This document is also applicable to seeding systems where components for seed deposition in the soil, for seed metering and for seed storage are distributed between two or more linked vehicles.
This document deals with all significant hazards (as listed in Annex A), hazardous situations and events relevant to seed drills, when they are used as intended and under the conditions of misuse foreseeable by the manufacturer, excepting the hazards arising from
—          electrostatic phenomena,
—          external influences on electrical equipment,
—          failure of energy supply,
—          failure and/or malfunction of the control system,
—          inadequate visibility from drivers'/operators' position,
—          travelling functions (drive, braking, etc.),
—          break down of parts rotating at high speed,
—          equipment for loading seeds (and fertilizer), and
—          moving parts for power transmission except for strength requirements for guards.
This document is not applicable to
—          fertilizer distributors designed only for solid fertilizer application (covered in ISO 4254-8),
—          maintenance or repairs carried out by professional service personnel, or
—          to environmental hazards (except noise), and
—          to seed drills which are manufactured before the date of its publication.
When requirements of this document are different from those which are stated in ISO 4254-1, the requirements of this document take precedence over the requirements of ISO 4254-1 for machines that have been designed and built according to the provisions of this document.

ISO 4254-5:2018, intended to be used together with ISO 4254‑1, specifies the safety requirements and their verification for the design and construction of mounted, semi-mounted and trailed power-driven soil-working machines used in agriculture. In addition, it specifies the type of information on safe working practices (including residual risks) to be provided by the manufacturer.
ISO 4254-5:2018 deals with significant hazards (as listed in Annex A), hazardous situations and events relevant to power-driven soil-working machines used as intended and under the conditions foreseeable by the manufacturer (see Clause 4).
ISO 4254-5:2018 is not applicable to
-      spading machines, and
-      machines fitted with a retractable device making them capable of working between two successive plants in the same row.
ISO 4254-5:2018 is not applicable to environmental hazards. It is not applicable to hazards related to moving parts for power transmission (except for strength requirements for guards and barriers) or to maintenance or repairs carried out by professional service personnel.
NOTE 1    Specific requirements related to road traffic regulations are not taken into account in this document.
NOTE 2    Vibrations are not regarded as a significant hazard in the case of mounted, semi-mounted or trailed machines.
ISO 4254-5:2018 is not applicable to power-driven soil-working machines which are manufactured before the date of its publication.
When requirements of this document are different from those which are stated in ISO 4254‑1, the requirements of this document take precedence over the requirements of ISO 4254‑1 for machines that have been designed and built according to the provisions of this document.