Regulation No. 58-03

Name:Regulation No. 58-03
Description:Rear Underrun Protection Devices.
Official Title:Uniform Provisions Concerning the Approval of: I. Rear Underrun Protective Devices (RUPDs); II. Vehicles with Regard to the Installation of an RUPD of an Approved Type; III. Vehicles with Regard to their Rear Underrun Protection (RUP).
Country:ECE - United Nations
Date of Issue:2016-07-14
Amendment Level:03 Series
Number of Pages:35
Vehicle Types:Component, Heavy Truck, Trailer
Subject Categories:Occupant Protection
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Keywords:

approval, vehicle, regulation, type, rear, vehicles, rupd, test, annex, device, paragraph, part, maximum, requirements, approved, granted, forces, rup, ground, application, technical, underrun, amendments, categories, force, production, series, width, mass, exceed, number, communication, manufacturer, applied, case, points, form, agreement, height, applying, parties, means, protection, service, cross-member, authority, distance, extension, protective, date

Text Extract:

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E/ECE/324
) Rev.1/Add.57/Rev.2/Amend.4
E/ECE/TRANS/505 )
July 11, 2016
STATUS OF UNITED NATIONS REGULATION
ECE 58-03
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF:
I. REAR UNDERRUN PROTECTIVE DEVICES (RUPDs)
II.
III.
VEHICLES WITH REGARD TO THE INSTALLATION OF AN RUPD OF AN
APPROVED TYPE
VEHICLES WITH REGARD TO THEIR REAR UNDERRUN PROTECTION (RUP)
Incorporating:
02 series of amendments
Date of Entry into Force: 11.07.20
Supplement 1 to the 02 series of amendments
Date of Entry into Force: 26.07.12
Corr. 1 to Amendment 1 to Revision 2 of the Regulation
Date of Entry into Force: 26.07.12
Supplement 2 to the 02 series of amendments
Date of Entry into Force: 18.11.12
Supplement 3 to the 02 series of amendments
Date of Entry into Force: 15.07.13
03 series of amendments
Date of Entry into Force: 18.06.16

REGULATION NO. 58-03
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF:
I. REAR UNDERRUN PROTECTIVE DEVICES (RUPDs)
II.
III.
VEHICLES WITH REGARD TO THE INSTALLATION OF AN RUPD OF AN APPROVED
TYPE
VEHICLES WITH REGARD TO THEIR REAR UNDERRUN PROTECTION (RUP)
CONTENTS
REGULATION
1.
Scope
2.
General requirements
3.
Definitions common to Parts I, II and III
PART I
APPROVAL OF RUPDs
4.
Definitions
5.
Application for approval
6.
Approval
7.
Requirements
8.
Conformity of production
9.
Penalties for non-conformity of production
10.
Modification and extension of approval of an RUPD type
11.
Production definitely discontinued
12.
Names and addresses of Technical Services responsible for conducting approval tests, and
of Administrative Departments
PART II
APPROVAL OF A VEHICLE WITH REGARD TO THE INSTALLATION OF
AN RUPD OF AN APPROVED TYPE
13.
Definitions
14.
Application for approval
15.
Approval
16.
Requirements for installation of an approved RUPD
17.
Conformity of production
18.
Penalties for non-conformity of production
19.
Modification and extension of approval of a vehicle type
20.
Production definitely discontinued
21.
Names and addresses of Technical Services responsible for conducting approval tests, and
of Administrative Departments

REGULATION NO. 58-03
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF:
I. REAR UNDERRUN PROTECTIVE DEVICES (RUPDs)
II.
III.
VEHICLES WITH REGARD TO THE INSTALLATION OF AN RUPD OF AN APPROVED
TYPE
VEHICLES WITH REGARD TO THEIR REAR UNDERRUN PROTECTION (RUP)
1. SCOPE
1.1. This Regulation applies to:
1.1.1. PART I: the RUPDs which are intended to be fitted to vehicles of Categories M, N and O;
1.1.2.
PART II: the installation on vehicles of Categories M, N and O
of RUPDs which have
been type approved to Part I of this Regulation;
1.1.3. PART III: vehicles of Categories M, N and O equipped with an RUPD which has not been
separately approved according to Part I of this Regulation or so designed and/or equipped
that its component parts can be regarded as totally or partially fulfilling the function of the
RUPD.
1.1.4. Vehicles of Categories M , M , M , N , O and O on grounds of rear underrun protection.
1.2. This Regulation does not apply to:
1.2.1. Tractive units for articulated vehicles;
1.2.2. Trailers specially designed and constructed for the carriage of very long loads of indivisible
length, such as timber, steel bars, etc.;
1.3. Vehicles where any RUPD (e.g. fixed, removable, foldable, adjustable, etc.) is incompatible
with their use on traffic roads may be partly or fully exempted from this Regulation, subject
to the decision of the Type Approval Authority.
2. GENERAL REQUIREMENTS
2.1. All vehicles shall be so constructed and/or equipped as to offer effective protection over
their whole width against under-running of vehicles mentioned in Paragraph 1. of this
Regulation in the event of rear collision with vehicles of Category M and N .
2.2. The vehicle shall be tested under the conditions as laid down in Paragraph 2. of Annex 5.

3. DEFINITIONS COMMON TO PARTS I, II and III
3.1. For the purpose of this Regulation:
3.1.1. "Unladen mass" means the mass of the vehicle in running order, unoccupied and unladen
but complete with fuel, coolant, lubricant, tools and a spare wheel (if provided as standard
equipment by the vehicle manufacturer);
3.1.2. "Maximum mass" means the mass stated by the vehicle manufacturer to be technically
permissible (this mass may be higher than the "permissible maximum mass" laid down by
the national administration);
3.1.3. An "RUPD" normally consists of a cross-member and links to the chassis side members or
other structural members of the vehicle.
3.1.4. "Separate cab" means a cab attached to the vehicle's frame by specific links and which
has no common part with the cargo area.

6.3. Notice of approval, or of extension or of refusal of approval of a type of RUPD pursuant to
this Regulation shall be communicated to the Parties to the 1958 Agreement which apply
this Regulation, by means of a form conforming to the model in Annex 1 to this Regulation.
6.4. There shall be affixed, conspicuously and in a readily accessible place specified on the
approval form, to every RUPD conforming to a type of RUPD approved under this
Regulation an international approval mark consisting of:
6.4.1. A circle surrounding the Letter "E" followed by the distinguishing number of the country
which has granted approval;
6.4.2. The number of this Regulation, followed by the Letter "R", a dash and the approval number
to the right of the circle prescribed in Paragraph 6.4.1.
6.5. The approval mark shall be clearly legible and be indelible.
6.6. Annex 4 to this Regulation gives examples of arrangements of approval marks.
7. REQUIREMENTS
7.1. The cross-member shall have a section height of at least 120mm. The lateral extremities of
the cross-member shall not bend to the rear or have a sharp outer edge; this condition is
fulfilled when the lateral extremities of the cross-member are rounded on the outside and
have a radius of curvature of not less than 2.5mm.
RUPD intended to be fitted on vehicles of Categories M, N , N with a maximum mass not
exceeding 8t, O , O , on vehicles of Category G and on vehicles fitted with a platform lift, the
cross-member shall have a section height of at least 100mm.
7.2. The RUPD may be so designed to have several positions at the rear of the vehicle. In this
event, there shall be a guaranteed method of securing it in the service position so that any
unintentional change of position is precluded. The force applied by the operator to vary the
position of the device shall not exceed 40daN.
For RUPD that are designed to have several positions at the rear of the vehicle, a label shall
be provided either with (a) symbol(s) or in the language(s) of the country where the device is
sold to inform the operator about the standard position of the RUPD to offer effective
protection against under-running.
Label minimum size:
60 × 120mm

10. MODIFICATION AND EXTENSION OF APPROVAL OF AN RUPD TYPE
10.1. Every modification of the RUPD type shall be notified to the Administrative Department
which approved the RUPD type. The department may then either:
10.1.1. Consider that the modifications made are unlikely to have an appreciable adverse effect and
that in any case the RUPD still complies with the requirements; or
10.1.2. Require a further test report from the Technical Service responsible for conducting the tests.
10.2. Confirmation or refusal of approval, specifying the alterations shall be communicated by the
procedure specified in Paragraph 6.3 above to the Parties to the Agreement applying this
Regulation.
10.3. The Competent Authority issuing the extension of approval shall assign a series number of
such an extension and inform thereof the other Parties to the 1958 Agreement applying this
Regulation by means of a communication form conforming to the model in Annex 1 to this
Regulation.
11. PRODUCTION DEFINITELY DISCONTINUED
If the holder of the approval completely ceases to manufacture a type of rear underrun
protective device approved in accordance with this Regulation, he shall so inform the
authority which granted the approval. Upon receiving the relevant communication that
authority shall inform thereof the other Parties to the 1958 Agreement applying this
Regulation by means of a communication form conforming to the model in Annex 1 to this
Regulation.
12. NAMES AND ADDRESSES OF TECHNICAL SERVICES RESPONSIBLE FOR
CONDUCTING APPROVAL TESTS, AND OF ADMINISTRATIVE DEPARTMENTS
The Parties to the 1958 Agreement applying this Regulation shall communicate to the
United Nations Secretariat the names and addresses of the Technical Services responsible
for conducting approval tests and of the Administrative Departments which grant approval
and to which forms certifying approval or extension or refusal or withdrawal of approval,
issued in other countries, are to be sent.

15. APPROVAL
15.1. If the vehicle submitted for approval pursuant to this Regulation is provided with an
approved RUPD and meets the requirements of Paragraph 16 below and has been tested
following the conditions set out in Paragraph 2.2., approval of that vehicle type shall be
granted.
15.2. An approval number shall be assigned to each type approved. Its first two digits (at present
03 corresponding to the 03 series of amendments) shall indicate the series of amendments
incorporating the most recent major technical amendments made to the Regulation at the
time of issue of the approval. The same Contracting Party may not assign the same number
to another vehicle type.
15.3. Notice of approval or of extension or of refusal of approval of a vehicle type pursuant to this
Regulation shall be communicated to the Parties to the 1958 Agreement which apply this
Regulation, by means of a form conforming to the model in Annex 2 to this Regulation.
15.4. There shall be affixed, conspicuously and in a readily accessible place specified on the
approval form, to every vehicle conforming to a vehicle type approved under this Regulation
an international approval mark consisting of:
15.4.1. A circle surrounding the Letter "E" followed by the distinguishing number of the country
which has granted approval;
15.4.2. The number of this Regulation, followed by the Letter "R", a dash and the approval number
to the right of the circle prescribed in Paragraph 15.4.1.
15.5. If the vehicle conforms to a vehicle type approved, under one or more other Regulations
annexed to the Agreement, in the country which has granted approval under this
Regulation, the symbol prescribed in Paragraph 15.4.1 need not be repeated; in such a
case the Regulation and approval numbers and the additional symbols of all the Regulations
under which approval has been granted in the country which has granted approval under
this Regulation shall be placed in vertical columns to the right of the symbol prescribed in
Paragraph 15.4.1.
15.6. The approval mark shall be clearly legible and be indelible.
15.7. The approval mark shall be placed close to or on the vehicle data plate affixed by the
manufacturer.
15.8. Annex 4 to this Regulation gives examples of arrangements of approval marks.

16.4. For vehicles of Categories M, N , N with a maximum mass not exceeding 8t, O and O , the
device shall be so fitted that the horizontal distance between the rear of the cross-member
of the device and the most rearward point at the rear extremity of the vehicle, including any
platform lift system, does not exceed 400mm diminished by the largest total deformation
including both plastic and elastic deformation (Paragraph 7.3 of Part I) measured and
recorded during the test at any of the points where the test forces are applied (Annex 1,
Item 8) during the type approval of the rear underrun protective device in conformity with the
provisions of Part I of this Regulation and recorded in the type approval communication
form. In measuring this distance, any part of the vehicle which is more than 2m above the
ground for every loading condition of the vehicle shall be excluded.
For vehicles of Categories N with a maximum mass exceeding 8t, N , and vehicles of
Categories O and O , equipped with a platform lift or being designed as a tipping trailer, the
same requirement as above applies; however, for vehicles of these categories, the
horizontal distance shall not exceed 300mm measured to the rear of the cross-member
before the test forces are applied.
For vehicles of Categories O and O , without any platform lift system and not being
designed as a tipping-trailer, the maximum horizontal distances are reduced to 200mm
before the test forces have been applied and 300mm diminished by the largest total
deformation including both plastic and elastic deformation (Paragraph 7.3. of Part I)
measured and recorded during the test at any of the points where the test forces are applied
(Annex 1, Item 8).
In any case non-structural protrusions such as tail lamps and those of less than 50mm of
size in any direction, such as rubber bumpers, resilient buffers, hinges and latches shall be
excluded from the determination of the most rearward point at the rear extremity.
Before the application of the test forces, the maximum allowed horizontal distance of a
single, a segmented or an inclined cross-member of a RUPD is 100mm between the rear of
the cross-member measured at the most forward point and the rear of the cross-member
measured at the most rearward point, measured in the longitudinal plane of the vehicle.
16.5. The device shall be so fitted that after the application of the test forces specified in Annex 5
for vehicles of the Categories N with a maximum mass exceeding 8t, N , O and O , the
maximum ground clearance of the protective device, even when the vehicle is unladen, shall
at any point not exceed by more than 60mm the value before test. For vehicles with a
departure angle up to 8° (Paragraph 16.1.) the maximum ground clearance shall not exceed
600mm.
16.6. The maximum mass of a vehicle type for which approval is requested shall not exceed the
value indicated on the type approval communication form of each approved RUPD intended
to be installed on that vehicle.
16.7. Given the provisions of Paragraph 7.2. for adjustable RUPD the label shall be placed clearly
and permanently visible at the driver's place or at the rear area of the vehicle next to the
RUPD, at a location, which is easily visible.

22. DEFINITIONS
PART III
APPROVAL OF A VEHICLE WITH REGARD TO ITS
REAR UNDERRUN PROTECTION (RUP)
22.1. For the purposes of Part III of this Regulation:
22.1.1. "Approval of a vehicle" means the approval of a vehicle type with regard to its RUP;
22.1.2. "Vehicle type" means a category of vehicles which do not differ with respect to the
essential points as the width of the rear axle, the structure, the dimensions, the shape and
the materials of the rear part of the vehicle, the characteristics of the suspension in so far as
they have a bearing on the requirements specified in Paragraph 25 of this Regulation;
22.1.3. "Rear underrun protection (RUP)" means the presence at the rear of the vehicle of either:
22.1.3.1. A special RUPD; or
22.1.3.2. Body work, chassis parts or other components, such that, by virtue of their shape and
characteristics, these elements can be regarded as totally or partially fulfilling the function of
the RUPD.
22.2. Other definitions applicable to this Part III are contained in Paragraph 3 of this Regulation.
23. APPLICATION FOR APPROVAL
23.1. The application for approval of a vehicle type with regard to the protection afforded by the
RUP shall be submitted by the vehicle manufacturer or by his duly accredited
representative.
23.2. It shall be accompanied by the under-mentioned documents in triplicate and by the following
particulars:
23.2.1. A detailed description of the vehicle type with respect to its structure, dimensions, lines and
constituent materials in so far as required for the purpose of this Regulation;
23.2.2. Drawings of the vehicle showing the vehicle type in side and rear elevation and design
details of the rear parts of the structure;
23.2.3. The maximum mass of the vehicle;
23.2.4. A detailed description of the RUP: its dimensions, lines, constituent materials and position
on the vehicle.
23.3. A vehicle representative of the type to be approved shall be submitted to the Technical
Service responsible for conducting the approval tests.
23.3.1. A vehicle not comprising all the components proper to the type may be accepted for test
provided that it can be shown by the applicant to the satisfaction of the Competent Authority
that the absence of the components omitted has no effect on the results of the verification,
so far as the requirements of this Regulation are concerned.
23.4. The Competent Authority shall verify the existence of satisfactory arrangements for ensuring
effective checks on conformity of production before type approval is granted.

25. REQUIREMENTS FOR RUP
25.1. For vehicles of the Categories N with a maximum mass exceeding 8t, N , O and O , the
ground clearance with respect to the underside of the RUP, even when the vehicle is
unladen, shall not exceed:
(a)
(b)
450mm for motor vehicles and trailers with hydropneumatic, hydraulic or pneumatic
suspension or a device for automatic leveling according to load. In any case a
departure angle up to 8° according to ISO 612:1978 with a maximum ground
clearance of 550mm shall be deemed to satisfy the requirements.
500mm or a departure angle according to ISO 612:1978 of 8°, whichever is less, for
vehicles other than those in (a) above. In any case a departure angle up to 8°
according to ISO 612:1978 with a maximum ground clearance of 550mm shall be
deemed to satisfy the requirements.
This requirement applies over the entire width of the motor vehicle or trailer and shall be
such that the height above the ground of the points of application of the test forces applied
to the device according to Part I of this Regulation and recorded in the type approval
communication form (Annex 1, Item 7) does not exceed the values in subparagraphs (a)
and (b) above, increased by half the minimum section height required for the cross member
of the RUPD.
The height requirement for the application of the test forces shall be adjusted to the adjusted
ground clearance due to the provisions for the departure angle specified above.
25.2. For vehicles of Categories M, N , N with a maximum mass not exceeding 8t, O and O , the
ground clearance with respect to the underside of the protective device, even when the
vehicle is unladen, shall not exceed 550mm over its entire width and shall be such that the
height above the ground of the points of application of the test forces to the RUP does not
exceed 600mm.
25.3. For vehicles of Categories M, N , N with a maximum mass not exceeding 8t, O and O , the
RUP shall be situated as close to the rear of the vehicle as possible. The maximum
horizontal distance between the rear of the device and the most rearward point at the rear
extremity of the vehicle, including any platform lift system, does not exceed 400mm
measured to the rear of the cross-member and recorded during the test when the test forces
are applied.
For vehicles of Categories N with a maximum mass exceeding 8t, N , and vehicles of
Categories O and O , equipped with a platform lift or being designed as a tipping trailer, the
same requirement as above applies; however, for vehicles of these categories, the
horizontal distance shall not exceed 300mm measured to the rear of the cross-member
before the test forces are applied.
For RUP for vehicles of Categories O and O , without any platform lift system and not being
designed as a tipping-trailer, the maximum horizontal distance is reduced to 200mm before
and 300mm during the test when the test forces are applied.
In any case nonstructural protrusions such as tail lamps and those of less than 50mm of
size in any direction, such as rubber bumpers, resilient buffers, hinges and latches shall be
excluded from the determination of the most rearward point at the rear extremity.
Before the application of the test forces the maximum allowed horizontal distance of a
single, a segmented or an inclined cross-member of a RUPD is 100mm between the rear of
the cross-member measured at the most forward point and the rear of the cross-member
measured at the most rearward point, measured in the longitudinal plane of the vehicle.

25.8. A practical test shall not be required where it can be shown by calculation that the
requirements of Annex 5, Paragraph 3, are met. Where a practical test is carried out, the
device must be connected to the chassis side-members of the vehicle or to a significant part
of these or to other structural members.
25.9. For vehicles fitted with a platform lift at the rear, the underrun device may be interrupted for
the purposes of the mechanism. In this case, the following special requirements apply:
25.9.1. The maximum lateral clearance measured between the elements of the underrun device
and the elements of the platform lift, which move through the interruption when the lift is
operated and which make the interruption necessary, may amount to no more than 2.5cm.
25.9.2. The individual elements of the underrun protection, including those outboard of the lift
system, where provided, must have an effective surface area, in each case, of at least
420cm .
25.9.3. For cross-members with a section height of less than 120mm, the individual elements of the
underrun protection, including those outboard of the lift mechanism, where provided, shall
have an effective surface area, in each case, of at least 350cm .
25.9.4. In the case of vehicles having a width of less than 2,000mm and where it is impossible to
achieve the requirements of Paragraphs 25.9.2 and 25.9.3 above,, the effective surface may
be reduced on the condition that the resistance criteria are met.
26. CONFORMITY OF PRODUCTION
The conformity of production procedures shall comply with those set out in the Agreement,
Appendix 2 (E/ECE/324-E/ECE/TRANS/505/Rev.2), with the following requirements:
26.1. Every vehicle approved under this Regulation shall be so manufactured as to conform to the
type approved by meeting the requirements set out in Paragraph 25 above.
26.2. The authority that has granted type approval may at any time verify the conformity control
methods applied in each production facility. The normal frequency of these verifications
shall be one every two years.
27. PENALTIES FOR NON-CONFORMITY OF PRODUCTION
27.1. The approval granted in respect of a vehicle type pursuant to this Regulation may be
withdrawn if the requirements set forth above are not met or if the vehicle has failed to pass
the test prescribed in Annex 5.
27.2. If a Contracting Party to the Agreement applying this Regulation withdraws an approval it
has previously granted, it shall forthwith so notify the other Contracting Parties applying this
Regulation, by means of a communication form conforming to the model in Annex 3 to this
Regulation.

31. TRANSITIONAL PROVISIONS
PART IV
TRANSITIONAL PROVISIONS
31.1. As from the official date of entry into force of the 03 series of amendments, no Contracting
Party applying this Regulation shall refuse to grant or refuse to accept type approvals of
vehicles, components or separate technical units under Parts I, II or III of this Regulation as
amended by the 03 series of amendments.
31.2. Until September 1, 2019, Contracting Parties applying this Regulation shall not refuse to
grant or refuse to accept type approvals of vehicles, components or separate technical units
under Part I, II or III of this Regulation as amended by the 02 series of amendments.
31.3. As from September 1, 2019, Contracting Parties applying this Regulation shall grant
approvals only if the type of vehicle, component or separate technical unit to be approved
meets the requirements of Part I, II or III of this Regulation as amended by the 03 series of
amendments.
31.4. As from September 1, 2021, Contracting Parties applying this Regulation shall not be
obliged to accept, for the purpose of national or regional type approval, a vehicle,
component or separate technical unit which is not type approved under Part I, II or III of the
03 series of amendments to this Regulation.
31.5. Until September 1, 2021, Contracting Parties applying this Regulation shall not refuse to
grant extensions of approval for vehicles, components or separate technical units which
comply with this Regulation as amended by the 02 series of amendments. However,
Contracting Parties which are still accepting approvals according to the 02 series of
amendments as given in Paragraph 31.4. beyond September 1, 2021 shall not refuse to
grant extensions to approvals after September 1, 2021.
31.6. Notwithstanding the transitional provisions above, Contracting Parties whose application of
this Regulation comes into force after the date of entry into force of the most recent series of
amendments are not obliged to accept approvals which were granted in accordance with
any of the preceding series of amendments to this Regulation.

10. Maximum mass of vehicle on which the device may be installed ....................................................
11. Device submitted for approval on .....................................................................................................
12. Technical Service responsible for conducting approval tests ...........................................................
...........................................................................................................................................................
13. Date of report issued by that service ................................................................................................
14. Number of report issued by that service ...........................................................................................
15. Approval has been granted/refused/extended/withdrawn in respect of the RUPD
16. Position of approval mark on the device ...........................................................................................
17. Place .................................................................................................................................................
18. Date ..................................................................................................................................................
19. Signature ...........................................................................................................................................
20. The following documents, bearing the approval number shown above, are available upon
request:
Drawings, diagrams and layout plans of the components of the structure considered to be of
importance for the purposes of this Regulation;
Detailed information about the devices representing the vehicle structures used for the mounting
of the RUPD (e.g. moment of inertia of the beams);
Where applicable drawings of the protective devices and their position on the vehicle.

11. Number of report issued by that service ...........................................................................................
12. Approval granted/refused/extended/withdrawn
13. Position of approval mark on the vehicle ..........................................................................................
14. Place .................................................................................................................................................
15. Date ..................................................................................................................................................
16. Signature ...........................................................................................................................................
17. The following documents, bearing the approval number shown above, are available upon
request:
drawings, diagrams and layout plans of the components of the structure considered to be of
importance for the purposes of this Regulation;
where applicable drawings of the protective devices and their position on the vehicle.

11. Date of report issued by that service ................................................................................................
12. Number of report issued by that service ...........................................................................................
13. Approval granted/refused/extended/withdrawn
14. Position of approval mark on the vehicle ..........................................................................................
15. Place .................................................................................................................................................
16. Date ..................................................................................................................................................
17. Signature ...........................................................................................................................................
18. The following documents, bearing the approval number shown above, are available upon
request.
drawings, diagrams and layout plans of the components of the structure considered to be of
importance for the purpose of this Regulation;
where applicable drawings of the protective devices and their position on the vehicle.

1. TEST CONDITIONS FOR RUPDs
ANNEX 5
TEST CONDITIONS AND PROCEDURES
1.1. At the request of the manufacturer the test may be conducted either:
1.1.1. On a vehicle of the type for which RUPD is intended; in this case the conditions set out in
Paragraph 2 shall be observed; or
1.1.2. On a part of the chassis of the vehicle type for which the RUPD is intended; this part shall be
representative of the vehicle type(s) in question; or
1.2. In the case of Paragraph 1.1.2, the parts used to connect the RUPD to part of the vehicle
chassis shall be equivalent to those which are used to secure the RUPD when it is installed on
the vehicle. The part of the chassis can be fixed on a test bench as shown in Figure 1,
representing the minimum requirements to be fulfilled. The structures used as side rails shall
be representative of the chassis of vehicles for which the underrun protection system is
intended.
The distance of the foremost fixing point of the RUPD from the rigid test bench shall not be less
than 500mm. If a diagonal strut is used to support the RUPD, this distance shall be measured
between the foremost fixing point of the strut to the side rail structures and the rigid test bench.
Figure 1
1.3. At the request of the manufacturer and with the consent of the Technical Service the test
procedure described in Paragraph 3 may be simulated by calculation.
The mathematical model shall be validated in comparison with the actual test conditions. To
that effect, a physical test shall be conducted for the purposes of comparing the results
obtained when using the mathematical model with the results of a physical test. Comparability
of the test results shall be proven. A validation report shall be drafted by the manufacturer or by
the technical service and submitted to the Type Approval Authority.
Any change made to the mathematical model or to the software likely to invalidate the
validation report shall be brought to the attention of the Type Approval Authority which may
require a new validation process to be conducted.

3.1.1. A horizontal force of 180kN or 85% of the force generated by the maximum mass of the
vehicle, whichever is the lesser, shall be applied consecutively to two points situated
symmetrically about the centre line of the device or of the vehicle whichever is applicable at a
minimum distance apart of 700mm and a maximum of 1m. The exact location of the points of
application shall be specified by the manufacturer.
Notwithstanding the provision above for non-separate cab vehicles of Category N with a
maximum mass not exceeding 8t, the horizontal forces may be reduced to 100kN or 50%.
3.1.2. In the cases defined in Paragraphs 1.1.1 and 1.1.2 of this Annex a horizontal force of 100kN or
50% of the force generated by the maximum mass of the vehicle, whichever is the lesser, shall
be applied consecutively to two points located 300 ± 25mm from the longitudinal planes
tangential to the outer edges of the wheels on the rear axle or of the RUPD, if it exceeds the
width of the rear axle, and to a third point located on the line joining these two points, in the
median vertical plane of the vehicle.
Notwithstanding the provision above for non-separate cab vehicles of Category N with a
maximum mass not exceeding 8t, the horizontal forces may be reduced to 50kN or 25%.
3.1.3. Upon request of the manufacturer, the force levels can be reduced to 80% of the requirement
given in Paragraphs 3.1.1. to 3.1.2 for the vehicles listed in Annex 6.
3.2. Replacement Force Application Points
If any point defined under Paragraph 3.1 is located within the interruption area of the underrun
protection device as mentioned in Paragraphs 7.4 or 25.8 of this Regulation, the test forces
shall be applied at replacement points located:
3.2.1. For the requirement under Paragraph 3.1.1, on the horizontal centerline and within 50mm of
each vertical edge closest to the intended points of force application, as defined in that
paragraph, and
3.2.2. For the requirement under Paragraph 3.1.2, at the intersection of the horizontal and vertical
centerlines of each element furthest from the vertical centerline of the device or of the vehicle,
whichever is applicable. These points should be a maximum of 325mm from the longitudinal
planes tangential to the outer edges of the wheels on the rear axle.

ANNEX 7
REQUIREMENTS FOR DIFFERENT VEHICLE CATEGORIES
Vehicle category or type
of vehicle
M, N , N with a MaxM
<8t, O , O , G
Section height
2.3./2.4./
7.1./25.5.
Geometry referred to in paragraph
Ground
clearance before
the test
2.3./2.4./
16.2./25.2.
Horizontal distance
between the rear of
the RUPD and the
rear of the vehicle
2.3./2.4./
16.4./25.3.
Test force referred
to in paragraph(s):
2.3./2.4./
A5/3.1.1. to 3.1.2.
N with a MaxM >8t, N 7.1. or 25.5. 16.1. or 25.1. 16.4. or 25.3. A5/3.1.1. to 3.1.2.
O , O 7.1. or 25.5.
Specific vehicles
(see Annex 6) 7.1. or 25.5.
16.1./16.2. or
25.1./25.2.
16.4. or 25.3.
A5/3.1.1. to 3.1.2.
16.1./16.2. or
25.1./25.2.
16.4. or 25.3.
A5/3.1.3.
Note: A reference such as A5/3.1.1. in the table indicates the Annex (Annex 5) and Paragraph (3.1.1.) of
that Annex, where the relevant vehicle or requirement is described and specified.
A reference such as 2.3. in the table indicates Paragraph (2.3.) of this Regulation, where the relevant
requirement is specified.
Rear Underrun Protection Devices.