Regulation No. 93-00

Name:Regulation No. 93-00
Description:Underrun Device - Front - Category N Vehicles.
Official Title:Uniform Provisions Concerning the Approval of: I. Front Underrun Protective Devices (FUPDs); II. Vehicles with Regard to the Installation of an FUPD of an Approved Type; III. Vehicles with Regard to their Front Underrun Protection (FUP).
Country:ECE - United Nations
Date of Issue:1994-03-15
Amendment Level:00 Series
Number of Pages:24
Vehicle Types:Component, Heavy Truck
Subject Categories:Occupant Protection
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Keywords:

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Text Extract:

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E/ECE/324 )
E/ECE/TRANS/505 ) Rev.1/Add.92
March 15, 1994
STATUS OF UNITED NATIONS REGULATION
ECE 93
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF:
I. FRONT UNDERRUN PROTECTIVE DEVICES (FUPDs)
II.
III.
VEHICLES WITH REGARD TO THE INSTALLATION OF AN FUPD OF AN APPROVED
TYPE
VEHICLES WITH REGARD TO THEIR FRONT UNDERRUN PROTECTION (FUP)
Incorporating:
00 series of amendments Date of Entry into Force: 27.02.94

REGULATION NO. 93
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF:
I. FRONT UNDERRUN PROTECTIVE DEVICES (FUPDs)
II. VEHICLES WITH REGARD TO THE INSTALLATION OF AN FUPD OF AN APPROVED TYPE
III. VEHICLES WITH REGARD TO THEIR FRONT UNDERRUN PROTECTION (FUP)
1.
Scope
2.
Purpose
3.
Definitions
4.
Application for Approval
CONTENTS
PART I.
APPROVAL OF FUPDS
5.
Approval of Front Underrun Protective Devices (FUPDs)
6.
Requirements for FUPDs
PART II.
APPROVAL OF A VEHICLE WITH REGARD TO THE INSTALLATION OF AN FUPD OF
AN APPROVED TYPE
7.
Approval of the Installation of an Approved FUPD
8.
Requirements for the Installation of an Approved FUPD
PART III.
APPROVAL OF A VEHICLE WITH REGARD TO ITS FRONT UNDERRUN PROTECTION
(FUP)
9.
Approval of a Vehicle with FUP
10.
Requirements for a Vehicle with FUP
ANNEXES
Annex 1 – Communication concerning the approval or extension or refusal or withdrawal of approval or
production definitely discontinued of a type of front underrun protection device (FUPD)
pursuant to Regulation No. 93 (Part I)
Annex 2 – Communication concerning the approval or extension or refusal or withdrawal of approval or
production definitely discontinued of a vehicle type with regard to the installation of a front
underrun protection device (FUPD) of an approved type pursuant to Regulation No. 93
(Part II)
Annex 3 – Communication concerning the approval or extension or refusal or withdrawal of approval or
production definitely discontinued of a vehicle with regard to its front underrun protection
(FUP) pursuant to Regulation No. 93 (Part III)
Annex 4 – Arrangements of approval marks
Annex 5 – Test conditions and procedures
Annex 6 – Conformity of production and other administrative procedures

3.1.3. "Unladen vehicle" means 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)
3.1.4. "Approval of an FUPD" means the approval of such a type of FUPD with respect to the
requirements laid down in Paragraph 7 below;
3.1.5. "Type of FUPD" means FUPD which do not differ with respect to the essential
characteristics such as shape, dimensions, attachment, materials and the markings cited in
Paragraph 4.2. below;
3.1.6. "Front underrun protection (FUP)" means the presence at the front of the vehicle of
either:
3.1.6.1. A special device (FUPD); or
3.1.6.2. Body work, chassis parts or other components, such that by virtue of their shape and
characteristics, these elements can be regarded as fulfilling the function of the FUPD;
3.1.7. "Approval of a vehicle" means the approval of a vehicle type:
for Part II of this Regulation - with regard to the installation of an FUPD of an approved type
according to Part I of this Regulation, or
for Part III of this Regulation - with regard to its FUP;
3.1.8. "Vehicle type" means vehicles which do not essentially differ in such aspects as:
The width of the foremost axle measured at the outermost part of the tyres excluding the
bulging of the tyres close to the ground.
The structure, the dimensions, the shape-and materials of the front part of the vehicle in so
far as they have a bearing on the requirements of the relevant Part of this Regulation.
The approved FUPDs fitted to the vehicle, where the application is pursuant to satisfying
Part II of this Regulation.
The maximum mass of the vehicle type.
4. APPLICATION FOR APPROVAL
4.1. The application for approval to a Part of this Regulation shall be submitted by the
manufacturer of the type (vehicle/FUPD) or his duly accredited representative.
4.2. For each type the application shall be accompanied by:
4.2.1. Documentation in triplicate giving a description of the technical characteristics of the type
(vehicle/FUPD): its dimensions, lines and constituent materials, in so far as required for the
purpose of this Regulation.
4.2.2. In case of FUPD sample of the type: the sample shall be clearly and indelibly marked on all
its main components, relevant to the front underrun, with the applicant's trade name or mark
and the type designation;

6.2. The section height of the FUPD cross-member shall not be less than 100 mm for
Category N vehicles and 120 mm for vehicles of Category N . The lateral extremities of the
cross-member shall not bend to the front 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 2.5 mm.
6.3. The device may be so designed that its position at the front of the vehicle can be varied. 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. It shall be possible for the operator to
vary the position of the device by applying a force not exceeding 40 daN;
6.4. The outermost surfaces of every front guard installation shall be essentially smooth or
horizontally corrugated save that domed heads of bolts or rivets may protrude beyond the
surface to a distance not exceeding 10 mm.
PART II. – APPROVAL OF A VEHICLE WITH REGARD TO THE
INSTALLATION OF AN FUPD OF AN APPROVED TYPE
7. APPROVAL OF AN INSTALLATION OF AN APPROVED FUPD
7.1. If the vehicle submitted for approval pursuant to this Part of this Regulation is provided with
an approved FUPD and meets the requirements of Paragraph 8 below, approval of that
vehicle type shall be granted in accordance with the arrangements contained in Annex 4.
7.2. Notice of approval, or of extension or of refusal of approval of the 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.
8. REQUIREMENTS FOR INSTALLATION OF AN APPROVED FUPD
8.1. 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 FUPD intended
to be installed on that vehicle.
8.2. The vehicle with the FUPD installed shall satisfy certain dimensional requirements specified
in Annex 5 taking into account the test conditions and information indicated on the
communication document contained in Annex 1 issued in respect of the FUPD.
8.3. The FUPD shall be so fitted to the vehicle that the horizontal distance measured in the
rearward direction from the foremost part of the vehicle to the front of the FUPD does not
exceed 400 mm diminished by the recorded deformation (Annex 1, Item 9) measured at any
of the points where the test forces have been applied during the type approval of the FUPD
in conformity with the provisions of Part I of this Regulation and recorded in the type
approval communication form (see Figures 1 and 2).
8.4. In measuring these distances, any part of the vehicle which is more than 2 m above the
ground shall be excluded.
8.5. The maximum ground clearance with respect to the underside of the FUPD shall be no
more than 400 mm, as specified in Paragraph 2 of Annex 5, between the two points P in
the installed condition. Outboard of each point P this height may be greater than 400 mm
providing the underside is not above a plane passing through the underside of the FUPD
directly below the point P and forming a slope at 15° above the horizontal (see Figure 3)

10.5. The FUP shall have sufficient strength that the horizontal distance measured in the rearward
direction between the foremost part of the vehicle after the application of the test forces
(specified in this Annex) and the test ram contact surface on the vehicle does not exceed
400 mm.
10.6. In measuring these distances, any part of the vehicle which is more than 2 m above the
ground shall be excluded.
10.7. The maximum ground clearance with respect to the underside of the FUP shall be no more
than 400 mm, as specified in Paragraph 2 of Annex 5, between the two points P . Outboard
of each point P this height may be greater than 400 mm providing the underside is not
above a plane passing through the underside of the FUP directly below the point P and
forming a slope at 15° above the horizontal (see figure 3).
10.8. The maximum ground clearance with respect to the underside of the FUP between the two
points P shall be no more than 450 mm taking into account their movement during the
application of the test load.
10.9. The width of the FUP shall at no point exceed the width of the mudguards covering the
wheels of the foremost axle nor shall it be more than 100 mm shorter on either side than the
foremost axle measured at the outermost points of the tyres, excluding the bulging of the
tyres close to the ground (see Figure l), or 200 mm shorter on either side, measured from
the outermost points of the access steps to the driver's cabin.

Figure 2

ANNEX 1
COMMUNICATION
(Maximum format: A4 (210 x 297 mm))
issued by:
Name of administration:
.......................................................
.......................................................
.......................................................
concerning
:
APPROVAL GRANTED
APPROVAL EXTENDED
APPROVAL REFUSED
APPROVAL WITHDRAWN
PRODUCTION DEFINITIVELY DISCONTINUED
of a type of front underrun protection device (FUPD) pursuant to Regulation No. 93 (Part I)
Approval No.............................. Extension No. ......................
1. Trade name or mark of technical unit .............................................................................................
2. If necessary the type of vehicle(s) and Category to which it is intended ........................................
........................................................................................................................................................
3. Maximum mass of vehicle(s) to which FUPD is to be installed ......................................................
4. Name and address of manufacturer ...............................................................................................
5. Name and address of manufacturer's authorized representative (if any) .......................................
6. Characteristics of the technical unit ................................................................................................
7. Restrictions on use and mounting specifications (if any)................................................................
8. Position on the device of the points of application of the test forces ..............................................
9. Maximum horizontal and vertical deflection during and after the application of the test forces of
any test point
10. Date on which the device was submitted for approval tests ...........................................................
11. Technical service responsible for carrying out the approval tests on devices................................
12. Date of test report issued by the technical service .........................................................................

ANNEX 2
(Maximum format: A4 (210 x 297 mm)
COMMUNICATION
issued by:
Name of administration:
.......................................................
.......................................................
.......................................................
concerning:
APPROVAL GRANTED
APPROVAL EXTENDED
APPROVAL REFUSED
APPROVAL WITHDRAWN
PRODUCTION DEFINITIVELY DISCONTINUED
of a vehicle type with regard to the installation of a front underrun protection device (FUPD) of an
approved type pursuant to Regulation No. 93 (Part II)
Approval No.............................. Extension No. ......................
1. Trade name or mark of the vehicle .................................................................................................
2. Type and category of vehicle(s)......................................................................................................
3. Maximum mass of vehicle(s)...........................................................................................................
4. Name and address of manufacturer ...............................................................................................
5. Name and address of manufacturer's authorized representative (if any) .......................................
6. Brief description of the vehicle type as regards its dimensions and lines.......................................
7. Trade name or mark of the FUPD(s) and its/their approval number(s) ..........................................
8. Date on which vehicle was submitted for approval tests ................................................................
9. Technical service responsible for carrying out the approval tests on vehicles ...............................
10. Date of test report issued by the technical service: ........................................................................
11. Number of test report issued by the technical service:
........................................................................................................................................................
12. Approval granted/refused/extended/withdrawn

ANNEX 3
(Maximum format: A4 (210 x 297 mm)
COMMUNICATION
issued by:
Name of administration:
.............................................................
.............................................................
.............................................................
concerning
:
APPROVAL GRANTED
APPROVAL EXTENDED
APPROVAL REFUSED
APPROVAL WITHDRAWN
PRODUCTION DEFINITIVELY DISCONTINUED
of a vehicle with regard to its front underrun protection (FUP) pursuant to Regulation No. 93 (Part III)
Approval No.............................. Extension No. ......................
1. Trade name or mark of the vehicle .................................................................................................
2. Type and category of vehicle(s)......................................................................................................
3. Maximum mass of vehicle(s)...........................................................................................................
4. Name and address of manufacturer ...............................................................................................
5. If applicable, name and address of manufacturer's representative ................................................
6. Characteristics of the parts providing frontal protection..................................................................
7. Date on which the vehicle was submitted for approval tests ..........................................................
8. Position on the FUP of the points of application of the test forces .................................................
9. Maximum vertical and horizontal deflection during and after the application of the test forces of
any test point
10. Technical service responsible for carrying out the approval tests on vehicles ...............................
11. Date of test report issued by the technical service .........................................................................
12. Number of test report issued by the technical service ....................................................................

ANNEX 4
ARRANGEMENTS OF APPROVAL MARKS
1. APPROVAL NUMBER
1.1. An approval number shall be assigned to each type approved. Its first two digits (at
present 00) 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 shall not assign the same number to another type.
1.2. Notice of approval, or of extension or of refusal of approval of a 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 one of the models in Annexes 1, 2 or 3 to this
Regulation.
1.3. There shall be affixed, conspicuously and in the case of a technical unit in a position where
in the installed condition it is readily accessible and specified on the approval form, to every
one of series conforming to a type approved under this Regulation an international approval
mark consisting of:
1.3.1. A circle surrounding the letter "E followed by the distinguishing number of the country which
has granted approval;
1.3.2. 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 1.3.1.
1.3.3. An additional symbol separated from the number of this Regulation by a vertical line and
consisting of the Roman numeral(s) for the Part (I, II or III) of the Regulation pursuant to
which the device or the vehicle has been approved.
1.4. 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 1.3.1. of this Annex 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 1.3.1. of this Annex.
1.5. The approval mark shall be clearly legible and be indelible.

ANNEX 5
TEST CONDITIONS AND PROCEDURES
1. TEST CONDITIONS FOR FUPDs
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 FUPD is intended; in that 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 FUPD is intended; this part shall be
representative of the vehicle type(s) in question; or
1.1.3. On a rigid test bench.
1.2. In the case of Paragraphs 1.1.2. and 1.1.3. above the parts used to connect the FUPD to
part of the vehicle chassis or to the rigid test bench shall be equivalent to those which are
used to secure the FUPD when it is installed on the vehicle.
1.3. At the request of the manufacturer and with the consent of the technical service the test
procedure described in Paragraph 3 below may be simulated by calculation or another such
method provided that its equivalence is demonstrated.
2. TEST CONDITIONS FOR VEHICLES
2.1. The vehicle may, if necessary to achieve the test forces required in Paragraph 3.1. below,
be restrained by any method, this method to be specified by the vehicle manufacturer.
2.2. Dimensions shall be taken as if the vehicle were in the following condition:
2.2.1. The vehicle was unladen.
2.2.2. The vehicle was at rest on a level, flat, rigid and smooth surface.
2.2.3. The front wheels were in the straight-ahead position.
2.2.4. The tyres were inflated to the pressure recommended by the vehicle manufacturer.
2.2.5. Vehicles equipped with hydropneumatic, hydraulic or pneumatic suspension or a device for
automatic levelling according to load were in their normal running condition specified by the
manufacturer.
3. TEST PROCEDURE
3.1. Points P are located up to 200 mm from the longitudinal planes tangential to the outermost
points of the tyres on the front axle, excluding the bulging of the tyres close to the ground;
points P are symmetrical to the median longitudinal plane of the vehicle at a distance from
each other of 700 to 1,200 mm inclusive. The exact positions shall be specified by the
manufacturer.

ANNEX 6
CONFORMITY OF PRODUCTION AND OTHER ADMINISTRATIVE PROCEDURES
1. CONFORMITY OF PRODUCTION
1.1. FUPDs and vehicles approved to this Regulation shall be so manufactured as to conform to
the type approval by meeting the requirements set forth in this Regulation.
1.2. In order to verify that the requirements of Paragraph 1.1. above are met, suitable controls of
the production shall be carried out.
1.3. The holder of the approval shall in particular:
1.3.1. ensure existence of procedures for the effective control of the quality of the vehicle or the
device:
1.3.2. have access to the testing equipment necessary for checking the conformity to each
approved type;
1.3.3. record data of test results and Annexed documents which shall remain available for a period
to be determined in accordance with the administrative service;
1.3.4. analyse the results of each type of test, in order to verify and ensure the stability of the
vehicle or the device characteristics making allowance for variations of an industrial
production;
1.3.5. ensure that for each type of vehicle or device sufficient checks and tests are carried out
regarding the dimensions, materials and performance of the components, which fulfil the
function of the FUP and of those for the installation on the vehicle;
1.3.6. ensure that any set of samples or test pieces giving evidence of non-conformity with the
type of test considered shall give rise to another sampling and another test. All the
necessary steps shall be taken to re-establish the conformity of the corresponding
production.
1.4. The competent authority which has granted type-approval may at any time verify the
conformity control methods applicable to each production unit.
1.4.1. In every inspection, the test books and production survey records shall be presented to the
visiting inspector.
1.4.2. The inspector may take samples at random which will be tested in the manufacturer's
laboratory. The minimum number of samples may be determined according to the results of
the manufacturer's own verification.
1.4.3. When the quality level appears unsatisfactory or when it seems necessary to verify the
validity of the tests carried out in application of Paragraph 1.4.2. above the inspector may
select samples to be sent to the technical service which has conducted the type approval
tests.

Underrun Device - Front - Category N Vehicles.