Regulation No. 98-01

Name:Regulation No. 98-01
Description:Headlamps - Gas-discharge Lamp Units.
Official Title:Uniform Provisions Concerning the Approval of: Motor Vehicle Headlamps Equipped with Gas-discharge Light Sources.
Country:ECE - United Nations
Date of Issue:2011-01-27
Amendment Level:01 Series, Supplement 9
Number of Pages:72
Vehicle Types:Bus, Car, Component, Heavy Truck, Light Truck, Motorcycle
Subject Categories:Lighting and Light Signalling Equipment
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Keywords:

headlamp, regulation, light, beam, approval, test, paragraph, source, annex, passing, headlamps, amendments, series, requirements, force, driving, samples, type, led, tests, case, traffic, luminous, module, date, lamp, entry, supplement, line, sample, designed, photometric, cut-off, gas-discharge, mark, lens, position, lamps, figure, part, values, material, vertical, production, sources, approved, flux, maximum, incorporated, vehicle

Text Extract:

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E/ECE/324
) Rev.1/Add.97/Rev.3/Amend.8
E/ECE/TRANS/505 )
April 27, 2018
STATUS OF UNITED NATIONS REGULATION
ECE 98-01
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF:
MOTOR VEHICLE HEADLAMPS EQUIPPED WITH GAS-DISCHARGE LIGHT SOURCES
Incorporating:
00 series of amendments
Date of Entry into Force: 15.04.96
Supplement 1 to the 00 series of amendments
Date of Entry into Force: 03.01.98
Supplement 2 to the 00 series of amendments
Date of Entry into Force: 10.12.02
Supplement 3 to the 00 series of amendments
Date of Entry into Force: 30.10.03
Supplement 4 to the 00 series of amendments
Date of Entry into Force: 12.08.04
Supplement 5 to the 00 series of amendments
Date of Entry into Force: 13.11.04
Corr. 1 to Supplement 5 to the 00 series of amendments
Dated: 09.04.08
Supplement 6 to the 00 series of amendments
Date of Entry into Force: 04.07.06
Supplement 7 to the 00 series of amendments
Date of Entry into Force: 10.10.06
Supplement 8 to the 00 series of amendments
Date of Entry into Force: 18.06.07
Supplement 9 to the 00 series of amendments
Date of Entry into Force: 11.07.08
Corr. 1 to Supplement 9 to the 00 series of amendments
Dated: 09.04.08
Corr. 2 to Supplement 9 to the 00 series of amendments
Dated: 30.04.09
Supplement 10 to the 00 series of amendments
Date of Entry into Force: 15.10.08
Corr. 1 to Supplement 10 to the 00 series of amendments
Dated: 03.03.10
Supplement 11 to the 00 series of amendments
Date of Entry into Force: 22.07.09
Supplement 12 to the 00 series of amendments
Date of Entry into Force: 24.10.09
Erratum to Supplement 12 to the original version of the Regulation
Supplement 13 to the 00 series of amendments
Date of Entry into Force: 19.08.10
01 series of amendments
Date of Entry into Force: 09.12.10
Corr. 1 to the 01 series of amendments
Dated: 28.04.11
Supplement 1 to the 01 series of amendments
Date of Entry into Force: 28.10.11
Corr. 1 to Revision 3 of the Regulation
Date of Entry into Force: 14.11.12
Supplement 2 to the 01 series of amendments
Date of Entry into Force: 26.07.12
Supplement 3 to the 01 series of amendments
Date of Entry into Force: 18.11.12
Supplement 4 to the 01 series of amendments
Date of Entry into Force: 15.07.13
Supplement 5 to the 01 series of amendments
Date of Entry into Force: 15.06.15
Supplement 6 to the 01 series of amendments
Date of Entry into Force: 08.10.15
Supplement 7 to the 01 series of amendments
Date of Entry into Force: 18.06.16
Supplement 8 to the 01 series of amendments
Date of Entry into Force: 10.10.17
Supplement 9 to the 01 series of amendments
Date of Entry into Force: 10.02.18

REGULATION NO. 98-01
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF MOTOR VEHICLE HEADLAMPS
EQUIPPED WITH GAS-DISCHARGE LIGHT SOURCES
A.
ADMINISTRATIVE PROVISIONS
Scope
1.
Definitions
2.
Application for approval of a headlamp
3.
Markings
4.
Approval
CONTENTS
B.
TECHNICAL REQUIREMENTS FOR HEADLAMPS
5.
General specifications
6.
Illumination
7.
Gauging of discomfort and/or disability
C.
FURTHER ADMINISTRATIVE PROVISIONS
8.
Modification of the headlamp type and extension of approval
9.
Conformity of production
10.
Penalties for non-conformity of production
11.
Production definitely discontinued
12.
Names and addresses of technical services responsible for conducting approval tests, and
of Type Approval Authorities
13.
Transitional provisions
ANNEXES
Annex 1
Annex 2
Annex 3
Annex 4
Annex 5
Annex 6
Annex 7
Annex 8
Annex 9
Annex 10
Annex 11
Communication Concerning the approval or extension or refusal or withdrawal of approval
or production definitively discontinued of a type of headlamp pursuant to Regulation No. 98
Examples of arrangements of approval marks
Spherical coordinate measuring system and test point locations
Tests for stability of photometric performance of headlamps in operation
Annex 4 – Appendix – Overview of operational periods concerning test for stability of
photometric performance
Requirements for lamps incorporating lenses of plastic material - testing of lens, or material
samples and of complete lamps
Annex 5 – Appendix 1 – Chronological order of approval tests
Annex 5 – Appendix 2 – Method of measurement of the diffusion and transmission
of light
Annex 5 – Appendix 3 – Spray testing method
Annex 5 – Appendix 4 – Adhesive tape adherence test
Centre of reference
Voltage markings
Minimum requirements for conformity of production control procedures
Minimum requirements for sampling by an inspector
Instrumental verification of the "cut-off" for passing beam headlamps
Requirements for LED modules and headlamps including LED modules

1.6. References made in this Regulation to standard (étalon) filament lamp(s) and gas-discharge
light source(s) shall refer to Regulations Nos. 37 and 99 respectively, and to their series of
amendments in force at the time of application for type approval.
2. APPLICATION FOR APPROVAL OF A HEADLAMP
2.1. The application for approval shall be submitted by the owner of the trade name or mark of
the headlamp or by his duly accredited representative. It shall specify:
2.1.1. Whether the headlamp is intended to provide a passing beam, a driving beam or both;
2.1.2. Whether, if the headlamp is intended to provide a passing beam, it is designed for both
left-hand and right-hand traffic or for either left-hand or right-hand traffic only;
2.1.3. If the headlamp is equipped with an adjustable reflector, the mounting position(s) of the
headlamp in relation to the ground and the longitudinal median plane of the vehicle;
2.1.4. The maximum vertical angles above and below the nominal position(s) which the aiming
device can achieve;
2.1.5. Which light sources are energized when the various beam combinations are used and, in
case of a light source category with more than one objective luminous flux value, which
objective luminous flux value is used;
2.1.6. The category of light source as listed in Regulations Nos. 37 or 99 and their series of
amendments in force at the time of application for type approval and, in case of a light
source category with more than one objective luminous flux value, which objective luminous
flux value is used for passing beam and for driving beam;
2.2. Every application shall be accompanied by:
2.2.1. Drawings in triplicate in sufficient detail to permit identification of the type (see
Paragraphs 3.2 and 4.2 below). The drawings must show the position intended for the
approval number and the additional symbols in relation to the circle of the approval mark, in
case of LED module(s) also the space reserved for the specific identification code(s) of the
module(s), and must show the headlamp in vertical (axial) section and in front elevation,
with main details of the optical design including the flutings, if applicable.
2.2.2. A brief technical specification including, where it applies, the make and type of the ballast(s)
and, in the case where the headlamp is used to produce bend lighting, the extreme
positions according to Paragraph 6.2.7. below. In the case of LED module(s) this shall
include:
(a)
(b)
a brief technical specification of the LED module(s);
a drawing with dimensions and the basic electrical and photometric values and the
objective luminous flux.

3. MARKINGS
3.1. Headlamps submitted for approval shall bear legibly and indelibly the trade name or mark of
the applicant.
3.2. They shall comprise, on the lens and on the main body, spaces of sufficient size for the
approval mark and the additional symbols referred to in Paragraph 4.; these spaces shall be
indicated on the drawings referred to in Paragraph 2.2.1. above.
3.3. Headlamps designed to satisfy the requirements of both right-hand and left-hand traffic shall
bear markings indicating the two settings of the optical unit on the vehicle or of the
gas-discharge light source on the reflector; these markings shall consist of the Letters "R/D"
for the position for right-hand traffic and the Letters "L/G" for the position for left-hand traffic.
3.4. All beams may bear on their light-emitting surface a centre of reference as shown in
Annex 6.
3.5. In the case of lamps with LED module(s), the lamp shall bear the marking of the rated
voltage and rated wattage and the light source module specific identification code.
3.6. LED module(s) submitted along with the approval of lamp:
3.6.1. Shall bear the trade name or mark of the applicant. This marking shall be clearly legible and
indelible;
3.6.2. Shall bear the specific identification code of the module. This marking shall be clearly legible
and indelible.
This specific identification code shall comprise the starting letters "MD" for "MODULE"
followed by the approval marking without the circle as prescribed in Paragraph 4.2.1. below
and in the case several non identical light source modules are used, followed by additional
symbols or characters. This specific identification code shall be shown in the drawings
mentioned in Paragraph 2.2.1. above. The approval marking does not have to be the same
as the one on the lamp in which the module is used, but both markings shall be from the
same applicant.
3.8. If an electronic light source control gear which is not part of a LED module is used to
operate a LED module(s), it shall be marked with its specific identification code(s), the rated
input voltage and wattage.

4.2.2.3. On headlamps meeting the requirements of this Regulation in respect of the passing beam
only, the Letter "DC";
4.2.2.4. On headlamps meeting the requirements of this Regulation in respect of the driving beam
only, the Letter "DR";
4.2.2.5. On headlamps meeting the requirements of this Regulation in respect of both the passing
beam and the driving beam, the Letters "DCR";
4.2.2.6. On headlamps incorporating a lens of plastic material, the Letters "PL" to be affixed near the
symbols prescribed in Paragraphs 4.2.2.3. to 4.2.2.5. above;
4.2.2.7. On headlamps meeting the requirements of this Regulation in respect of the driving beam,
an indication of the maximum luminous intensity expressed by a reference mark as defined
in Paragraph 6.3.2.2 below, placed near the circle surrounding the Letter "E";
In the case of reciprocally incorporated headlamps, indication of the maximum luminous
intensity of the driving beam as a whole shall be expressed as above.
4.2.3. In every case the relevant operating mode used during the test procedure according to
Paragraph 1.1.1.1. of Annex 4 and the allowed voltage(s) according to Paragraph 1.1.1.2. of
Annex 4 shall be stipulated on the approval forms and on the communication forms
transmitted to the countries which are Contracting Parties to the Agreement and which apply
this Regulation.
In the corresponding cases the device shall be marked as follows:
4.2.3.1. On headlamps meeting the requirements of this Regulation which are so designed that the
passing beam shall not be lit simultaneously with that of any other lighting function with
which it may be reciprocally incorporated: an oblique stroke (/) shall be placed behind
symbol indicating the headlamp producing the passing beam in the approval mark.
4.2.3.2. The requirement in Paragraph 4.2.3.1 above shall not apply to headlamps meeting the
requirements of this Regulation which are so designed that the passing beam and the
driving beam are provided by the same gas-discharge light source.
4.2.4. The two digits of the approval number which indicate the series of amendments
incorporating the most recent major technical amendments made to the Regulation at the
time of issue of the approval and, if necessary, the required arrow may be marked close to
the above additional symbols.
4.2.5. The marks and symbols referred to in Paragraphs 4.2.1. to 4.2.3. above shall be clearly
legible and be indelible. They may be placed on an inner or outer part (transparent or not) of
the headlamp, which cannot be separated from the transparent part of the headlamp
emitting the light.

B. TECHNICAL REQUIREMENTS FOR HEADLAMPS
5. GENERAL SPECIFICATIONS
The requirements contained in Sections 5. "General Specifications" and 6. "Individual
Specifications" and in the Annexes referenced in the said sections of UN Regulations
Nos. 48, 53 or 86, and their series of amendments in force at the time of application for the
lamp type approval shall apply to this Regulation.
The requirements pertinent to each lamp and to the category/ies of vehicle on which the
lamp is intended to be installed shall be applied, where its verification at the moment of lamp
type approval is feasible.
5.1. Each sample shall comply with the specifications set forth in Paragraphs 6. to 8. below.
5.2. Headlamps shall be so made as to retain their prescribed photometric characteristics and to
remain in good working order when in normal use, in spite of the vibrations to which they
may be subjected.
5.2.1. Headlamps shall be fitted with a device enabling them to be so adjusted on the vehicle as to
comply with the rules applicable to them. Such a device need not be fitted on units in which
the reflector and the diffusing lens cannot be separated, provided the use of such units is
confined to vehicles on which the headlamps setting can be adjusted by other means.
Where a headlamp providing a principal passing beam and a headlamp providing a driving
beam, each equipped with its own light source(s), are assembled to form a composite unit,
the adjusting device shall enable each optical system individually to be duly adjusted. The
same provision applies to headlamps providing a front fog lamp beam and a driving beam,
and to headlamps providing a principal passing beam and a front fog lamp beam, and to
headlamps providing these three beams.
5.2.2. However, these provisions shall not apply to headlamp assemblies whose reflectors are
indivisible. For this type of assembly, the requirements of Paragraph 6.3. of this Regulation
shall apply.
5.3. Headlamps designed to satisfy the requirements of both right-hand and of left-hand traffic
may be adapted for traffic on a given side of the road either by an appropriate initial setting
when fitted on the vehicle or by selective setting by the user. Such initial or selective setting
may consist, for example, of fixing either the optical unit at a given angle on the vehicle or
the light source(s) at a given angle in relation to the optical unit. In all cases, only two
different and clearly distinct settings, one for right-hand and one for left-hand traffic, shall be
possible, and the design shall preclude inadvertent shifting from one setting to the other or
setting in an intermediate position. Where two different setting positions are provided for the
light source, the components for attaching the light source to the reflector must be so
designed and made that, in each of its two settings, the light source will be held in position
with the precision required for headlamps designed for traffic on only one side of the road.
Conformity with the requirements of this Paragraph shall be verified by visual inspection
and, where necessary, by a test fitting.

5.6. Complementary tests shall be done according to the requirements of Annex 4 to ensure that
in use there is no excessive change in photometric performance.
5.7. Light transmitting components made of plastic material shall be tested according to the
requirements of Annex 5.
5.8. Light Sources
5.8.1. Gas-discharge headlamps shall only be equipped with replaceable gas-discharge light
source(s) approved according to UN Regulation No. 99 and its series of amendments in
force at the time of application for type approval.
5.8.2. In the case that one or more (additional) filament light sources are used in the
gas-discharge headlamp, the gas-discharge headlamp shall only be equipped with these
filament light sources that shall be replaceable and approved according to UN Regulation No.
37 and its series of amendments in force at the time of application for type approval,
provided that no restriction on the use is made in UN Regulation No. 37 and its series of
amendments in force at the time of application for type approval.
5.8.3. The design of the device shall be such that the light source(s) can be fixed in no other
position but the correct one.
5.8.4. The lamp holder shall conform to the dimensional characteristics as given on the data sheet
of IEC Publication 60061, relevant to the category of light source(s) used. The light
source(s) shall fit easily into the headlamp.
5.9. The headlamp and ballast system shall not generate radiated or power line disturbances to
cause a malfunction of other electric/electronic systems of the vehicle.
5.10. If it is necessary for the test procedure, the test house may require from the manufacturer
additional test samples, test benches (holders) or special power supplies.
5.11. The test procedure shall be carried out under the mounting specifications of the
manufacturer.
5.12. The headlamp (if equipped with LED modules) and the LED module(s) themselves shall
comply with the relevant requirements specified in Annex 11 of this Regulation. The
compliance with the requirements shall be tested.

6.2. Provisions Concerning Passing Beams
6.2.1. The luminous intensity distribution of the passing beam headlamp shall incorporate a
"cut-off" (see Figure 1 below), which enables the headlamp to be adjusted correctly for the
photometric measurements and for the aiming on the vehicle.
The "cut-off" shall provide:
(a)
For right hand traffic beams:
(i)
(ii)
a straight "horizontal part" towards the left;
a raised "elbow-shoulder" part towards the right.
(b)
For left hand traffic beams:
(i)
(ii)
a straight "horizontal part" towards the right;
a raised "elbow − shoulder" part towards the left.
In each case the "elbow − shoulder" part shall have a sharp edge.
6.2.2. The headlamp shall be visually aimed by means of the "cut-off" (see Figure 1) as follows.
The aiming shall be carried out using a flat vertical screen set up at a distance of 10m or
25m (as indicated in Section 9 of Annex 1) forward of the headlamp and at right angles to
the H-V axis as shown in Annex 3 to this Regulation. The screen shall be sufficiently wide to
allow examination and adjustment of the "cut-off" of the passing beam over at least 5° on
either side of the V-V Line
6.2.2.1. For vertical adjustment: the horizontal part of the "cut-off" is moved upward from below
Line B and adjusted to its nominal position one per cent (0.57°) below the H-H Line;
“" Elbow ”"
V
A
“" Shoulder ”"
“" Cut - off ”"
H
B
H
B
V
A
Note: The scales are different for vertical and horizontal lines.
Figure 1

6.2.4.2. One additional light source according to Regulation No. 37, and/or one or more LED
module(s) inside the passing beam headlamp, may be used for the purposes of generating
infrared radiation. It/they shall only be activated at the same time as the gas-discharge light
source. In the event that the gas-discharge light source fails, this additional light source
and/or LED module(s) shall be automatically switched off.
6.2.4.3. In the event of failure of an additional light source or LED module, the headlamp shall
continue to fulfil the requirements of the passing beam.
6.2.4.4. Measurement conditions with respect to light sources
6.2.4.4.1. In the case of a gas-discharge light source:
The voltage applied to the terminals of the ballast(s) is either 13.2V +/- 0.1 for 12V systems
or otherwise specified (See Annex 7).
6.2.4.4.2. In the case of a filament light source according to Regulation No. 37:
The lamp shall be measured by means of an uncoloured standard (étalon) filament lamp
designed for a rated voltage of 12V. During the checking, the voltage at the terminals of the
filament lamp shall be regulated so as to obtain the reference luminous flux at 13.2V as
indicated a the relevant data sheet of Regulation No. 37.
6.2.4.4.3. In the case of LED module(s):
The lamp shall be measured at 6.3V, 13.2V or 28.0V respectively, if not otherwise specified
within this Regulation. LED module(s) operated by an electronic light source control gear,
shall be measured as specified by the applicant.

6.2.6. The requirements in Paragraph 6.2.5. above shall also apply to headlamps designed to
provide bend lighting and/or that include the additional light source or LED module(s)
referred to in Paragraph 6.2.4.2. In the case of a headlamp designed to provide bend
lighting its alignment may be changed, provided that the axis of the beam is not displaced
vertically by more than 0.2°.
6.2.6.1. If bend lighting is obtained by:
6.2.6.1.1. Swivelling the passing beam or moving horizontally the kink of the elbow of the cut-off, the
measurements shall be carried out after the complete headlamp assembly has been
reaimed horizontally, e.g. by means of a goniometer;
6.2.6.1.2. Moving one or more optical parts of the headlamp without moving horizontally the kink of the
elbow of the cut-off, measurements shall be carried out with these parts being in their
extreme operating positions.
6.2.6.1.3. Means of one additional light source or one or more LED module(s) without moving
horizontally the kink of the elbow of the cut-off, measurements shall be carried out with this
light source or LED module(s) activated.
6.3. Provisions Concerning Driving Beams
6.3.1. In the case of a headlamp designed to provide a driving beam and a passing beam,
measurements of the luminous intensity of the driving beam shall be taken with the same
headlamp alignment as for measurements under Paragraph 6.2.5. above; in the case of a
headlamp providing a driving beam only, it shall be so adjusted that the area of maximum
luminous intensity is centred on the point of intersection of Lines H-H and V-V; such a
headlamp needs meet only the requirements referred to in Paragraph 6.3. Test voltages are
the same as in Paragraph 6.2.4.4.
6.3.2. It is possible to use several light sources for the driving beam, these light sources being
listed in either Regulation No. 37 (in this case the filament lamps shall be operated at their
reference luminous flux), in Regulation No. 99 and/or they can LED module(s). Where more
than one light source is used to provide the driving beam, these light sources shall be
operated simultaneously whilst determining the maximum value of luminous intensity (I ).
It is also possible that a part of the driving beam produced by one of these light sources will
be used exclusively for short time signals (flash to pass) as declared by the applicant. This
shall be indicated in the relevant drawing and a remark shall be made in the communication
form.
6.3.3. Referring to Annex 3 Figure C, and the table below, the luminous intensity distribution of the
driving beam shall meet the following requirements.
Test Point
Angular Coordinates
Degrees
Required luminous intensity
cd
H-5L 0.0, 5.0L 6,250
H-2.5L 0.0, 2.5L 25,000
H-2.5R 0.0, 2.5R 25,000
H-5R 0.0, 5.0R 6,250
Min

C. FURTHER ADMINISTRATIVE PROVISIONS
8. MODIFICATION OF THE HEADLAMP TYPE AND EXTENSION OF APPROVAL
8.1. Every modification of the headlamp type including the ballast shall be notified to the Type
Approval Authority which approved the headlamp type. The said department may then
either:
8.1.1. Consider that the modifications made are unlikely to have appreciable adverse effects and
that in any event the headlamp still complies with the requirements; or
8.1.2. Require a further test report from the technical service responsible for conducting the tests.
8.2. Confirmation or refusal or approval, specifying the alterations, shall be communicated by the
procedure specified in Paragraph 4.1.5. above to the Contracting Parties to the Agreement
which apply this Regulation.
8.3. The competent authority issuing the extension of approval shall assign a series number to
each communication form drawn up for such an extension and inform thereof the other
Contracting Parties to the 1958 Agreement applying this Regulation by means of a
communication form conforming to the model in Annex 1 to this Regulation.
9. CONFORMITY OF PRODUCTION
The Conformity of Production (CoP) 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:
9.1. Headlamps approved under this Regulation shall be so manufactured as to conform to the
type approved by meeting the requirements set forth in Paragraph 6.
9.1.2. In order to verify that the requirements of Paragraph 9.1. are met, suitable controls of the
production shall be carried out.
9.1.3. The holder of the approval shall in particular:
9.1.3.1. Ensure the existence of procedures for the effective control of the quality of products;
9.1.3.2. Have access to the control equipment necessary for checking the conformity to each
approved type;
9.1.3.3. Ensure that data of test results are recorded and that related documents shall remain
available for a period to be determined in accordance with the administrative service;
9.1.3.4. Analyze the results of each type of test in order to verify and ensure the stability of the
product characteristics making allowance for variation of an industrial production;
9.1.3.5. Ensure that for each type of product at least the tests prescribed in Annex 8 to this
Regulation are carried out;

12. NAMES AND ADDRESSES OF TECHNICAL SERVICES RESPONSIBLE FOR
CONDUCTING APPROVAL TESTS, AND OF TYPE APPROVAL AUTHORITIES
The Contracting 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 Type Approval Authorities which grant
approval and to which forms certifying approval or extension or refusal or withdrawal of
approval, or production definitely discontinued, issued in other countries, are to be sent.
13. TRANSITIONAL PROVISIONS
13.1. From the date of entry into force of the 01 series of amendments to this Regulation no
Contracting Party applying it shall refuse to grant approvals under this Regulation as
amended by the 01 series of amendments.
13.2. Until 60 months after the date of entry into force of the 01 series of amendments to this
Regulation with regard to the changes introduced by the 01 series of amendments
concerning the photometric testing procedures involving the use of the spherical coordinate
system and the specification of luminous intensity values, and in order to allow the
Technical Services (test laboratories) to update their testing equipment, no Contracting
Party applying this Regulation shall refuse to grant approvals under this Regulation as
amended by the 01 series of amendments where existing testing equipment is used with
suitable conversion of the values, to the satisfaction of the type approval authority.
13.3. As from 60 months after the date of entry into force of the 01 series of amendments,
Contracting Parties applying this Regulation shall grant approvals only if the headlamp
meets the requirements of this Regulation as amended by the 01 series of amendments.
13.4. Existing approvals for headlamps already granted under this Regulation before the date of
entry into force of the 01 series of amendments shall remain valid indefinitely.
13.5. Contracting Parties applying this Regulation shall not refuse to grant extensions of
approvals to the preceding series to this Regulation.

9. Brief description:
9.1. Headlamp submitted for approval as type: ...............................................................................
9.2. The passing beam light source may/may not be lit simultaneously with the driving beam
light source and/or another reciprocally incorporated headlamp.
9.3. The rated voltage of the device is: .............................................................................................
9.4. Category (or categories) of light source(s): ...............................................................................
9.5. Trade name and identification number of separate ballast(s) or part(s) of ballast(s): ...............
9.6. The adjustment of the "cut-off" has been determined at 10m/25m
The determination of the minimum sharpness of the “cut-off” has been carried out at
10m/25m
9.7. Number and specific identification code(s) of LED module(s): .................................................
9.8. Remarks (if any): ........................................................................................................................
9.9. Measures according to Paragraph 5.4. of this Regulation: .......................................................
10. Approval mark position: .............................................................................................................
11. Reason(s) for extension of approval: .........................................................................................
12. Approval granted/extended/refused/withdrawn:
13. Place: .........................................................................................................................................
14. Date: ...........................................................................................................................................
15. Signature: ...................................................................................................................................
16. The list of documents deposited with the Administration Service which has granted approval
is annexed to this communication and may be obtained on request.

The use of Roman numerals as approval numbers should be avoided so as to prevent any confusion
with other symbols.
Figure 2
Figure 3a
The headlamp bearing the approval marking shown above is a headlamp meeting the requirements of
this Regulation, as amended by the 01 series of amendments, with respect to both the passing beam
and the driving beam and designed:
For left-hand traffic only
For both traffic systems, by means of an
adjustment as desired of the setting of the
optical unit or the light source on the vehicle
Figure 3b
Figure 4 Figure 5

The headlamp bearing the above approval marking shown above is a headlamp meeting the
requirements of this Regulation, as amended by the 01 series of amendments:
With a gas discharge light source in
respect of the passing beam only and
is designed for left-hand traffic only.
Same arrangement as Figure 6, but the front
fog lamp cannot be lit simultaneously with
the driving beam.
Figure 8 Figure 9
Identification of a passing beam headlamp meeting the requirements of this Regulation, as amended by
the 01 series of amendments, and incorporating a lens of plastic material,
and combined or grouped or reciprocally
incorporated with R 8 halogen driving beam.
The passing beam shall not be lit simultaneously
with the halogen driving beam. The passing beam
is designed for right-hand traffic only.
designed for both traffic systems.
The passing beam shall not be lit
simultaneously with another reciprocally
incorporated headlamp.

Note:
The four examples shown above correspond to a lighting device bearing an approval mark relating to:
A front position lamp approved in accordance with the 01 series of amendments to Regulation No. 7,
for left-hand installation;
A headlamp with a gas discharge passing beam designed for right-hand and left-hand traffic and a gas
discharge driving beam with a maximum intensity comprised between 123,625 and 145,125 (as indicated
by the Number 30), approved in accordance with this Regulation in its original form and incorporating a
lens of plastic material;
A front fog lamp approved in accordance with the 02 series of amendments to Regulation No. 19 and
incorporating a lens of plastic material;
A front direction indicator lamp of Category 1a approved in accordance with the 01 series of
amendments to Regulation No. 6.

The main body of the headlamp shall bear the only valid approval number, for instance:

ANNEX 3
SPHERICAL COORDINATE MEASURING SYSTEM AND TEST POINT LOCATIONS
Figure A
Spherical Coordinate Measuring System

Figure C
Drivingg Beam Test Points

1.1. Clean Headlamp
The headlamp shall be operated for 12h as described in Subparagraph 1.1.1. and checked
as prescribed in Subparagraph 1.1.2.
1.1.1. Test Procedure
The headlamp shall be operated for a period according to the specified time, so that
1.1.1.1.
(a)
In the case where only one lighting function (driving or passing beam) is to be
approved, the corresponding light source is lit for the prescribed time
(b)
In the case of a reciprocally incorporated passing beam lamp and driving beam lamp
or in the case of a reciprocally incorporated front fog lamp and driving beam
headlamp:
If the applicant declares that the headlamp is to be used with a single light source lit
at a time, the test shall be carried out in accordance with this condition, activating
each specified function successively for half the time specified in Paragraph 1.1.,
In all other cases, the headlamp shall be subjected to the following cycle until the
time specified is reached:
15min, passing beam lit
5min, all functions lit;
In the case of a passing beam and a driving beam provided by the same
gas-discharge light source, the cycle will be:
15min, passing beam lit
5min, all driving beam contributors lit
(c)
(d)
(e)
In the case of grouped lighting functions, all the individual functions shall be lit
simultaneously for the time specified for individual lighting functions (a), also taking
into account the use of reciprocally incorporated lighting functions (b), according to
the manufacturer's specifications.
In the case of a passing beam designed to provide bend lighting with the addition of a
light source, this light source shall be switched on for 1min, and switched off for 9min
during the activation of the passing beam only (see Annex 4 - Appendix 1).
In the case that the driving beam uses several light sources in accordance with
Paragraph 6.3.2 and if the applicant declares that a part of the driving beam (one of
these additional light sources) will be used exclusively for short time signals (flash to
pass), the test shall be carried out without this part of the driving beam.

1.1.2.2. Photometric Test:
To comply with the requirements of this Regulation, the photometric values shall be verified
in the following points:
Passing beam:
50R ― B50L ― 25L for headlamps designed for right-hand traffic
50L ― B50R ― 25R for headlamps designed for left-hand traffic.
Driving beam: Point I .
Another aiming may be carried out to allow for any deformation of the headlamp base due to
heat (the change of the position of the cut-off line is covered in Paragraph 2. of this Annex).
Except for Point B50L, a 10% discrepancy between the photometric characteristics and the
values measured prior to the test is permissible including the tolerances of the photometric
procedure. The value measured at Point B50L shall not exceed the photometric value
measured prior to the test by more than 170cd.
1.2. Dirty Headlamp
After being tested as specified in Subparagraph 1.1. above, the headlamp shall be operated
for 1h as described in Subparagraph 1.1.1., after being prepared as prescribed in
Subparagraph 1.2.1., and checked as prescribed in Subparagraph 1.1.2.
1.2.1. Preparation of the Headlamp
1.2.1.1. Test Mixture
1.2.1.1.1. For headlamp with the outside lens in glass:
The mixture of water and a polluting agent to be applied to the headlamp shall be composed
of:
9 parts by weight of silica sand with a particle size of 0-100µm,
1 part by weight of vegetal carbon dust produced from beechwood with a particle size of
0-100µm,
0.2 parts by weight of NaCMC , and
5 parts by weight of sodium chloride (pure at 99%),
an appropriate quantity of distilled water, with a conductivity of ≤ 1µS/m.
The mixture must not be more than 14 days old.

2.1. Test for Passing Beam Headlamps
The test shall be carried out in a dry and still atmosphere at an ambient temperature of
23°C ± 5°C.
Using a mass production gas-discharge light source which has been aged for at least 15h,
the headlamp shall be operated on passing beam function without being dismounted from or
readjusted in relation to its test fixture. (For the purpose of this test, the voltage shall be
adjusted as specified in Paragraph 1.1.1.2.). The position of the cut-off line in its horizontal
part (between VV and the vertical line passing through Point B50L for right-hand traffic or
B50R for left-hand traffic) shall be verified 3min (r ) and 60min (r ) respectively after
operation.
The measurement of the variation in the cut-off line position as described above shall be
carried out by any method giving acceptable accuracy and reproducible results.
2.2. Test Results
2.2.1. The result expressed in milliradians (mrad) shall be considered as acceptable for a passing
beam headlamp when the absolute value Δr = | r – r | recorded on the headlamp is not
more than 1.0mrad (Δr ≤1.0mrad) upward and not more than 2.0mrad (∆r ≤2.0mrad)
downwards.
2.2.2. However, if this value is:
Movement
Upward
Downward
more than 1.0mrad but not more than 1.5mrad
(1.0mrad <∆r ≤1.5mrad)
more than 2.0mrad but not more than 3.0mrad
(2.0mrad <∆r ≤3.0mrad)
A further sample of a headlamp mounted on a test fixture representative of the correct
installation on the vehicle shall be tested as described in Paragraph 2.1. above after being
subjected three consecutive times to the cycle as described below, in order to stabilize the
position of mechanical parts of the headlamp:
(a)
(b)
Operation of the passing beam for 1h (the voltage shall be adjusted as specified in
Paragraph 1.1.1.2.);
1h period with the lamp switched off.
After these three cycles, the headlamp type shall be considered as acceptable if the
absolute values ∆r measured according to Paragraph 2.1. above on this further sample
meet the requirements in Paragraph 2.2.1 above.

4. P+D (DCR) with the same light source
Additional light source or LED module(s) of bend light
D
P

Before this test, the samples shall be kept at 23°C ± 5°C and 60-75% RH for at least 4h.
Note: The periods of 1h at 23°C ± 5°C shall include the periods of transition from one
temperature to another which are needed in order to avoid thermal shock effects.
2.1.2. Photometric Measurements
2.1.2.1. Method
2.1.2.2. Results
Photometric measurements shall be carried out on the samples before and after the test.
These measurements shall be made using a standard lamp, at the following points:
B50L and 50R for the passing beam of a passing lamp or a passing/driving lamp (B50R and
50L in the case of headlamps intended for left-hand traffic);
I for the driving beam.
The variation between the photometric values measured on each sample before and after
the test shall not exceed 10% including the tolerances of the photometric procedure.
2.2. Resistance to Atmospheric and Chemical Agents
2.2.1. Resistance to Atmospheric Agents
Three new samples (lenses or samples of material) shall be exposed to radiation from a
source having a spectral energy distribution similar to that of a black body at a temperature
between 5 500K and 6,000K. Appropriate filters shall be placed between the source and the
samples so as to reduce as far as possible radiation’s with wave lengths smaller than
295nm and greater than 2,500nm. The samples shall be exposed to an energetic
illumination of 1,200W/m ± 200W/m for a period such that the luminous energy that they
receive is equal to 4,500MJ/m ± 200MJ/m . Within the enclosure, the temperature
measured on the black panel placed on a level with the samples shall be 50°C ± 5°C. In
order to ensure a regular exposure, the samples shall revolve around the source of radiation
at a speed between 1 and 5min .
The samples shall be sprayed with distilled water of conductivity lower than 1mS/m at a
temperature of 23°C ± 5°C, in accordance with the following cycle:
Spraying:
Drying :
5min;
25min.

2.2.4. Resistance to Light Source Radiations
The following test shall be done:
Flat samples of each light transmitting plastic component of the headlamp are exposed to
the light of the gas-discharge light source. The parameters such as angles and distances of
these samples shall be the same as in the headlamp. These samples shall have the same
colour and surface treatment, if any, as the parts of the headlamp.
After 1,500h of continuous exposure, the colorimetric specifications of the transmitted light
must be met with a new standard gas-discharge light source, and the surfaces of the
samples shall be free of cracks, scratches, scalings or deformation.
2.3. Resistance to Detergents and Hydrocarbons
2.3.1. Resistance to Detergents
The outer face of three samples (lenses or samples of material) shall be heated to
50°C ± 5°C and then immersed for five minutes in a mixture maintained at 23°C ± 5°C and
composed of 99 parts distilled water containing not more than 0.02% impurities and one part
alkylaryl sulphonate.
At the end of the test, the samples shall be dried at 50°C ± 5°C. The surface of the samples
shall be cleaned with a moist cloth.
2.3.2. Resistance to Hydrocarbons
2.3.3. Results
The outer face of these three samples shall then be lightly rubbed for one minute with a
cotton cloth soaked in a mixture composed of 70% n-heptane and 30% toluene (volume %),
and shall then be dried in the open air.
After the above two tests have been performed successively, the mean value of the
variation in transmission Δt = (T2 - T3)/T2, measured on the three samples according to the
procedure described in Appendix 2 to this Annex shall not exceed 0.010 (Δt ≤0.010).
2.4. Resistance to Mechanical Deterioration
2.4.1. Mechanical Deterioration Method
The outer face of the three new samples (lenses) shall be subjected to the uniform
mechanical deterioration test by the method described in Appendix 3 to this Annex.

2.6.1.2. Results
After the test, the results of photometric measurements carried out on the headlamp in
accordance with this Regulation shall not exceed:
(a)
By more than 30% the maximum values prescribed at Points B50L and by more than
10% below the minimum values prescribed at Point 75R (in the case of headlamps
intended for left-hand traffic, the points to be considered are B50R and 75L).
or
(b)
By more than 10% below the minimum values prescribed for HV in the case of a
headlamp producing driving-beam only.
2.6.2. Test of Adherence of Coatings, if any
The lens of lamp sample No. 2 shall be subjected to the test described in Paragraph 2.5.
above.

B. Tests on Complete Headlamps (Supplied Pursuant to Paragraph 2.2.3. of this
Regulation)
Complete headlamp
Tests
2.1. Deterioration
(Paragraph 2.6.1.1.)
2.2. Photometry
(Paragraph 2.6.1.2.)
2.3. Adherence
(Paragraph 2.6.2.)
Sample No.
1 2
x
x
x

Figure 1
Optical Setup for Measurement of Variations in Diffusion and Transmission

ANNEX 5 - APPENDIX 4
ADHESIVE TAPE ADHERENCE TEST
1. PURPOSE
This method allows to determine under standard conditions the linear force of adhesion of
an adhesive tape to a glass plate.
2. PRINCIPLE
Measurement of the force necessary to unstick an adhesive tape from a glass plate at an
angle of 90°.
3. SPECIFIED ATMOSPHERIC CONDITIONS
The ambient conditions shall be at 23°C ± 5°C and 65 ± 15% relative humidity (RH).
4. TEST PIECES
Before the test, the sample roll of adhesive tape shall be conditioned for 24h in the specified
atmosphere (see Paragraph 3 above).
Five test pieces each 400mm long shall be tested from each roll. These test pieces shall be
taken from the roll after the first three turns were discarded.
5. PROCEDURE
6. RESULTS
The test shall be under the ambient conditions specified in Paragraph 3.
Take the five test pieces while unrolling the tape radially at a speed of approximately
300mm/s, then apply them within 15s in the following manner:
Apply the tape to the glass plate progressively with a slight lengthwise rubbing movement of
the finger, without excessive pressure, in such a manner as to leave no air bubble between
the tape and the glass plate.
Leave the assembly in the specified atmospheric conditions for 10min.
Unstick about 25mm of the test piece from the plate in a plane perpendicular to the axis of
the test piece.
Fix the plate and fold back the free end of the tape at 90°. Apply force in such a manner that
the separation line between the tape and the plate is perpendicular to this force and
perpendicular to the plate.
Pull to unstick at a speed of 300mm/s ± 30mm/s and record the force required.
The five values obtained shall be arranged in order and the median value taken as the result
of the measurement. This value shall be expressed in Newtons per centimetre of width of
the tape.

ANNEX 7
VOLTAGE MARKINGS
This marking must be placed on the main
body of each headlamp containing only
gas discharge light sources and ballast,
and on each external part of the ballast.
The ballast(s) is (are) designed for a ** Volts
network system.
This marking must be placed on the main
body of each headlamp containing at least
one gas discharge light source and ballast.
The ballast(s) is (are) designed for a ** Volts
network system.
None of the filament lamps and/or LED
module(s) which the headlamp contains is
designed for a 24V network system.

1.2.3. If the results of the tests described above do not meet the requirements, the alignment of
the headlamp may be changed, provided that the axis of the beam is not displaced laterally
by more than 0.5° to the right or left and not by more than 0.2° up or down.
1.2.4. If the results of the tests described above do not meet the requirements, tests on the
headlamp shall be repeated using another standard gas-discharge light source or
gas-discharge light source and ballast, whatever is applicable according to Paragraph 1.2.
above.
1.3. With respect to the verification of the change in vertical position of the cut-off line under the
influence of heat, the following procedure shall be applied:
One of the sampled headlamps shall be tested according to the procedure described in
Paragraph 2.1. of Annex 4 after being subjected three consecutive times to the cycle
described in Paragraph 2.2.2. of Annex 4.
The headlamp shall be considered as acceptable if Δr (as defined in Paragraphs 2.1. and
2.2. of Annex 4 to this Regulation) does not exceed 1.5mrad.
If this value exceeds 1.5mrad but is not more than 2.0mrad, a second headlamp shall be
subjected to the test after which the mean of the absolute values recorded on both samples
shall not exceed 1.5mrad.
1.4. The chromaticity coordinates shall be complied with.
1.5. If, however, vertical adjustment cannot be performed repeatedly to the required position
within the tolerances described in Paragraph 6.2.2.3. of this Regulation, one sample shall be
tested according to the procedure described in Paragraphs 2. and 3. of Annex 10.
2. MINIMUM REQUIREMENTS FOR VERIFICATION OF CONFORMITY BY THE
MANUFACTURER
For each type of headlamp the holder of the approval mark shall carry out at least the
following tests, at appropriate intervals. The tests shall be carried out in accordance with the
provisions of this Regulation.
If any sampling shows non-conformity with respect to the type of test concerned, further
samples shall be taken and tested. The manufacturer shall take steps to ensure the
conformity of the production concerned.
2.1. Nature of Tests
Tests of conformity in this Regulation shall cover the photometric characteristics and the
verification of the change in vertical position of the cut-off line under the influence of heat.
2.2. Methods Used in Tests
2.2.1. Tests shall generally be carried out in accordance with the methods set out in this
Regulation.

ANNEX 9
MINIMUM REQUIREMENTS FOR SAMPLING BY AN INSPECTOR
1. GENERAL
1.1. The conformity requirements shall be considered satisfied from a mechanical and a
geometric standpoint, in accordance with the requirements of this Regulation, if any, if the
differences do not exceed inevitable manufacturing deviations.
1.2. With respect to photometric performance, the conformity of mass-produced headlamps shall
not be contested if, when testing photometric performance of any headlamp chosen at
random and measured at 13.2V ± 0.1V or as otherwise specified and:
either
equipped with a standard gas-discharge light source according to Paragraph 6.1.3. The
luminous flux of this gas-discharge light source may differ from the reference luminous flux
specified in Regulation No. 99. In this case, the illuminances shall be corrected accordingly.
or
equipped with the serial production gas-discharge light source and the serial ballast. The
luminous flux of this light source may deviate from the nominal luminous flux due to light
source and ballast tolerances as specified in Regulation No. 99, accordingly the measured
illuminances may be corrected by 20% in the favourable direction.
1.2.1. No measured value deviates unfavourably by more than 20% from the values prescribed in
this Regulation.
1.2.2. or if
In the glare zone the maximum deviation may be respectively:
B50L (or R):
170cd equivalent 20%
255cd equivalent 30%
Zone A 255cd equivalent 20%
380cd equivalent 30%
1.2.2.1. For the passing beam, the values prescribed in this Regulation are met at one point within a
circle of 0.35° around Points B50L (or R) (with a tolerance of 85cd), 75R (or L), 50V,
25R1, 25L2, and on Segment I;

3. FIRST REPEATED SAMPLING
A sample of four lamps is selected at random from stock manufactured after alignment.
The first sample of two is marked C, the second sample of two is marked D.
3.1. The conformity of mass-produced headlamps shall not be contested if the deviation of any
specimen of samples C and D (all four lamps) is not more than 20%.
In the case, that the deviation of both lamps of sample C is not more than 0%, the
measurement can be closed.
3.2. The conformity of mass-produced headlamps shall be contested if the deviation of at least:
3.2.1 One specimen of samples C or D is more than 20% but the deviation of all specimen of
these samples is not more than 30%.
The manufacturer shall be requested again to bring his production in line with the
requirements (alignment).
A second repeated sampling according to Paragraph 4. below shall be carried out within two
months' time after the notification. The samples C and D shall be retained by the Technical
Service until the entire CoP process is finished.
3.2.2. One Specimen of Samples C or D is more than 30%.
In this case the approval shall be withdrawn and Paragraph 5. below shall be applied.
4. SECOND REPEATED SAMPLING
A sample of four lamps is selected at random from stock manufactured after alignment.
The first sample of two is marked E, the second sample of two is marked F.
4.1. The conformity of mass-produced headlamps shall not be contested if the deviation of any
specimen of samples E and F (all four lamps) is not more than 20%.
In the case, that the deviation of both lamps of sample E is not more than 0% the
measurement can be closed.
4.2. The conformity of mass-produced headlamps shall be contested if the deviation of at least
one specimen of samples E or F is more than 20%.
In this case the approval shall be withdrawn and Paragraph 5. below shall be applied.
5. APPROVAL WITHDRAWN
Approval shall be withdrawn according to Paragraph 10. of this Regulation.

ANNEX 10
INSTRUMENTAL VERIFICATION OF THE "CUT-OFF"
FOR PASSING BEAM HEADLAMPS
1. GENERAL
In the case where Paragraphs 6.2.2.4. of this Regulation applies, the quality of the "cut-off"
shall be tested according to the requirements set out in Paragraph 2. below and the
instrumental vertical and horizontal adjustment of the beam shall be performed according to
the requirements set out in Paragraph 3. below.
Before carrying out the measurement of the quality of "cut-off" and the instrumental aiming
procedure, a visual pre-aim in accordance with Paragraphs 6.2.2.1. and 6.2.2.2. of this
Regulation is required.
2. MEASUREMENT OF THE QUALITY OF THE "CUT-OFF"
To determine the minimum sharpness, measurements shall be performed by vertically
scanning through the horizontal part of the "cut-off" in angular steps of 0.05° at either a
measurement distance of:
(a)
(b)
10m with a detector having a diameter of approximately 10mm or
25m with a detector having a diameter of approximately 30mm.
The measuring distance at which the test was carried out shall be recorded in Item 9 of the
communication form (see Annex 1 of this Regulation).
To determine the maximum sharpness, measurements shall be performed by vertically
scanning through the horizontal part of the "cut-off" in angular steps of 0.05° exclusively at a
measurement distance of 25m and with a detector having a diameter of approximately
30mm.
The "cut-off" quality shall be considered acceptable if the requirements of Paragraph 2.1 to
2.3 below comply with at least one set of measurements.
2.1. Not more than One "Cut-off" shall be Visible
2.2. Sharpness of "Cut-off"
The sharpness Factor G is determined by scanning vertically through the horizontal part of
the "cut-off" at 2.5° from the V-V where:
G = (log E - log E
) where β = the vertical position in degrees.
The value of G shall not be less than 0.13 (minimum sharpness) and not greater than
0.40 (maximum sharpness).

3.1. Vertical Adjustment
Moving upward from below the Line B (see Figure 2 below), a vertical scan is carried out
through the horizontal part of the "cut-off" at 2.5° from V-V. The inflection point (where d
(log E)/dv = 0) is determined and positioned on the Line B situated one per cent below H-H.
3.2. Horizontal Adjustment
The applicant shall specify one of the following horizontal aim methods:
(a)
The "0.2 D Line" method (see Figure 2 below).
A single horizontal line at 0.2° D shall be scanned from 5° left to 5° right after the lamp
has been aimed vertically. The maximum gradient "G" determined using the formula
G = (log E - log E ) where β is the horizontal position in degrees, shall not be less than
0.08.
The inflection point found on the 0.2 D Line shall be positioned on the Line A.
Note: The scales are different for vertical and horizontal lines.
Figure 2
Instrumental Vertical and Horizontal Adjustment −
Horizontal Line Scan Method

ANNEX 11
REQUIREMENTS FOR LED MODULES AND
HEADLAMPS INCLUDING LED MODULES
1. GENERAL SPECIFICATIONS
1.1. Each LED module sample submitted shall conform to the relevant specifications of this
Regulation when tested with the supplied electronic light source control-gear(s), if any.
1.2. LED module(s) shall be so designed as to be and to remain in good working order when in
normal use. They shall moreover exhibit no fault in design or manufacture.
1.3. LED module(s) shall be tamperproof.
1.4. The design of removable LED module(s) shall be such that:
1.4.1. When the LED module is removed and replaced with another module provided by the
applicant and bearing the same light source module identification code, the photometric
specifications of the headlamp shall be met;
1.4.2. LED modules with different light source module identification codes within the same lamp
housing, shall not be interchangeable.
1.5. Electronic light source control gear(s) may be part of the LED module(s).
2. MANUFACTURE
2.1. The LED(s) on the LED module shall be equipped with suitable fixation elements.
2.2. The fixation elements shall be strong and firmly secured to the LED(s) and the LED module.
3. TEST CONDITIONS
3.1. Application
3.1.1. All samples shall be tested as specified in Paragraph 4. below;
3.1.2. The kind of light sources on a LED MODULE shall be light emitting diodes (LED) as defined
in Regulation No. 48 Paragraph 2.7.1. in particular with regard to the element of visible
radiation. Other kinds of light sources are not permitted.
3.2. Operating Conditions
3.2.1. LED Module Operating Conditions
All samples shall be tested under the conditions as specified in Paragraphs 6.2.4.4. of this
Regulation. If not specified differently in this Annex LED modules shall be tested inside the
headlamp as submitted by the manufacturer.

Headlamps - Gas-discharge Lamp Units.