Regulation No. 98-00

Name:Regulation No. 98-00
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:1996-03-26
Amendment Level:00 Series, Supplement 13
Number of Pages:77
Vehicle Types:Bus, Car, Component, Heavy Truck, Light Truck, Motorcycle
Subject Categories:Prior Versions
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Keywords:

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

Text Extract:

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E/ECE/324 )
E/ECE/TRANS/505 ) Rev.1/Add.97/Rev.2/Amend.2
October 4, 2010
STATUS OF UNITED NATIONS REGULATION
ECE 98-00
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
Supplement 13 to the 00 series of amendments
Date of Entry into Force: 19.08.10

REGULATION NO. 98
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF MOTOR VEHICLE HEADLAMPS
EQUIPPED WITH GAS-DISCHARGE LIGHT SOURCES
A.
ADMINISTRATIVE PROVISIONS
0.
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 administrative departments
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 definitely discontinued of a type of headlamp pursuant to Regulation No. 98
Examples of arrangements of approval marks
Measuring screens
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

1.6.5. the kind of beam produced (passing beam or driving beam or both);
1.6.6. the materials constituting the lenses and coating, if any;
1.6.7. However, a device intended for the installation on the left side of the vehicle and the
corresponding device intended for the installation on the right side of the vehicle shall be
considered to be of the same type.
1.7. 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;
2.1.6. whether a distributed lighting system is used and which type(s) of beam(s) is (are) intended
to be provided by this system;
2.1.7. 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.
For a distributed lighting system using a non-replaceable gas-discharge light source not
approved under Regulation No. 99, the part number assigned by the light-generator
manufacturer to the light generator.
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.

2.2.5.2.2. if provisions are taken to shield the relevant headlamp components from UV radiation,
e.g. by glass filters.
2.3. For a distributed lighting system 10 samples of the material(s) and related protective
coating/shield, if any, of which the light-guide and other optical parts of the system are
made.
2.4. The materials making up the lens and, in the case of a distributed lighting system, the
materials making up the optical parts of the system, and related coatings/shields, if any,
shall be accompanied by the test report of the characteristics of these materials and
coatings if they have already been tested.
3. MARKINGS
3.1. Headlamps or distributed lighting systems 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 a light-generator of a distributed lighting system using a non-replaceable
gas-discharge light source not approved under Regulation No. 99, the light-generator shall
bear the trade name or mark of its manufacturer and the part number referred to in
Paragraph 2.2.2. above.
3.6. 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.
3.7. LED module(s) submitted along with the approval of lamp:
3.7.1. Shall bear the trade name or mark of the applicant. This marking shall be clearly legible and
indelible;

4.2. Composition of the Approval Mark
The approval mark shall consist of:
4.2.1. An international approval marking, comprising:
4.2.1.1. a circle surrounding the Letter "E" followed by the distinguishing number of the country
which has granted approval;
4.2.1.2. the approval number prescribed in Paragraph 4.1.4. above;
4.2.2. the following additional symbol or symbols:
4.2.2.1. on headlamps meeting left-hand traffic requirements only, a horizontal arrow pointing to the
right of an observer facing the headlamp, i.e. to the side of the road on which the traffic
moves;
4 2.2.2. on headlamps designed to meet the requirements of both traffic systems by means of an
appropriate adjustment of the setting of the optical unit or the light source, a horizontal arrow
with a head at each end, the heads pointing respectively to the left and to the right;
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.
4.2.2.8. on distributed lighting systems, the Letters "DLS" shall replace the Letter "D" required in
Paragraphs 4.2.2.3., 4.2.2.4. and 4.2.2.5. applying the same criteria.

4.3.2.2. The identification symbol for each lamp appropriate to each Regulation under which
approval has been granted, together with the corresponding series of amendments
incorporating the most recent major technical amendments to the Regulations at the time of
issue of the approval and, if necessary, the required arrow shall be marked:
4.3.2.2.1. either on the appropriate light-emitting surface;
4.3.2.2.2. or in a group, in such a way that each of the grouped, combined or reciprocally incorporated
lamps may be clearly identified (see four possible examples in Annex 2, Figure 10).
4.3.2.3. The size of the components of a single approval mark shall not be less than the minimum
size required by the Regulation under which approval has been granted for the smallest of
the individual marks.
4.3.2.4. An approval number shall be assigned to each type approved. The same Contracting Party
may not assign the same number to another type of grouped, combined or reciprocally
incorporated lamps covered by this Regulation.
4.3.2.5. Annex 2, Figure 10 of this Regulation gives examples of arrangements of approval marks
for grouped, combined or reciprocally incorporated lamps with all the above-mentioned
additional symbols.
4.3.3. Lamps, the lens of which are used for different types of headlamps and which may be
reciprocally incorporated or grouped with other lamps
The provisions laid down in Paragraph 4.3.2. above are applicable.
4.3.3.1. In addition, where the same lens is used, the latter may bear the different approval marks
relating to the different types of headlamps or units of lamps, provided that the main body or
distributed lighting system of the headlamp, even if they cannot be separated from the lens,
also comprises the space described in Paragraph 3.2. above, and bears the approval mark
of the actual functions.
4.3.3.2. Annex 2, Figure 11, to this Regulation gives examples of arrangements of approval marks
relating to the above case.
4.3.4. Distributed Lighting Systems
For distributed lighting systems the applicable provisions of Paragraphs 4.3.1. to 4.3.3.2.
shall be complied with, in conjunction with the requirements of Paragraph 3.4.

5.4. Illumination Configuration for Different Traffic Conditions
5.4.1. In the case of headlamps designed to meet the requirements of traffic moving on one side of
the road (either right or left) only, appropriate measures shall be taken to prevent discomfort
to road-users in a country where traffic moves on the side of the road opposite to that of the
country for which the headlamp was designed . Such measures may be:
(a)
(b)
(c)
occulting a part of the outer headlamp lens area;
downward movement of the beam. Horizontal movement is allowed;
any other measure to remove or reduce the asymmetrical part of the beam.
5.4.2. Following the application of this(these) measure(s) the following requirements regarding
illumination shall be met with the adjustment left unchanged compared to that for the original
traffic direction:
5.4.2.1.
Passing beam designed for right-hand traffic and adapted to left-hand traffic:
at 0.86D-1.72L
at least 5 lux
at 0.57U-3.43R
not more than 1.4 lux
5.4.2.2.
Passing beam designed for left-hand traffic and adapted to right-hand traffic:
at 0.86D-1.72R
at least 5 lux
at 0.57U-3.43L
not more than 1.4 lux
5.5. On headlamps designed to provide alternately a driving beam and a passing beam or a
passing beam and/or a driving beam designed to become a bend lighting, any mechanical,
electro-mechanical or other device incorporated in the headlamp for these purposes must
be so constructed that:
5.5.1. the device is robust enough to withstand 50 000 operations under normal conditions of use.
In order to verify compliance with this requirement, the Technical Service responsible for
approval tests may:
(a)
(b)
require the applicant to supply the equipment necessary to perform the test;
forego the test if the headlamp presented by the applicant is accompanied by a test
report, issued by a Technical Service responsible for approval tests for headlamps of
the same construction (assembly), confirming compliance with this requirement.
5.5.2. in the case of failure, the illumination above the Line H-H shall not exceed the values of a
passing beam according to Paragraph 6.2.6.; in addition, on headlamps designed to provide
a passing and/or a driving beam to become a bend lighting, a minimum illumination of at
least 5 lux shall be fulfilled in test Point 25 V (VV Line, D 75 cm).
When performing the tests to verify compliance with these requirements, the Technical
Service responsible for approval tests shall refer to the instructions supplied by the
applicant.

5.12. The test procedure shall be carried out under the mounting specifications of the
manufacturer.
5.13. 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. ILLUMINATION
6.1. General Provisions
6.1.1. Headlamps or distributed lighting systems shall be so made that with suitable gas-discharge
light source they give adequate illuminance without dazzle when emitting the passing beam,
and good illumination when emitting the driving beam.
6.1.2. The illumination produced by the headlamp shall be determined by means of a flat vertical
screen set up 25 m forward of the headlamp, at right angles to its axes as shown in Annex 3
to this Regulation; the test 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.
6.1.3. The headlamp or distributed lighting systems shall be deemed satisfactory if the photometric
requirements set in the present Paragraph 6. are met with one light source, which has been
aged during at least 15 cycles, in accordance with Annex 4, Paragraph 4. of
Regulation No. 99.
Where the gas-discharge light source is approved according to Regulation No. 99 it shall be
a standard (étalon) light-source and its luminous flux may differ from the objective luminous
flux specified in Regulation No. 99. In this case, the illuminances shall be corrected
accordingly.
The above correction does not apply to distributed lighting systems using a non-replaceable
gas-discharge light source or to headlamps with the ballast(s) totally or partially integrated.
Where the gas-discharge light source is not approved according to Regulation No. 99 it shall
be a production non-replaceable light source.
6.1.4. The dimensions determining the position of the arc inside the standard gas-discharge light
source are shown in the relevant data sheet of Regulation No. 99.
6.1.5. Photometric compliance must be checked in accordance with Paragraph 6.2.6. or 6.3. of
this Regulation. This is also valid for the cut-off zone between 3° R and 3° L (measurement
method for the cut-off colour being under consideration).
6.1.6. The colour of the light of the beams emitted by headlamps using gas-discharge light
sources shall be white.
6.1.7. Four seconds after ignition of a headlamp that has not been operated for 30 minutes or
more:
6.1.7.1. At least 60 lux shall be attained at point HV, for a headlamp producing driving beam only.
6.1.7.2. At least 10 lux shall be attained at point 50V for headlamps producing passing beam only or
alternately passing and driving beam functions as described in Paragraph 5.4. of this
Regulation.

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 (25 cm) below the H-H Line;
“" Elbow ”"
V
A
“" Shoulder ”"
“" Cut - off ”"
1%D
0.2 ° D
H
B
H
B
Nominal
Cutoff "cut-off"
Position position
Vertical aiming tolerance
0.5°
V
A
Horizontal aiming tolerance
Note:
The scales are different for vertical and horizontal lines.
Figure 1

6.2.4. Only one gas-discharge light source is permitted for each passing beam headlamp. A
maximum of two additional light sources are permitted as follows:
6.2.4.1. One additional light source according to Regulation No. 37 or one or more additional LED
module(s) may be used inside the passing beam headlamp to contribute to bend lighting.
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.
The test voltage for the measurement with this additional light source and/or LED module(s)
shall be the same as in Paragraph 6.2.4.4.
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. The voltage applied to the terminals of the ballast(s) is:
either: 13.5 V ± 0.1 for 12 V systems
or: otherwise specified (See Annex 7)
6.2.5. After more than 10 minutes after ignition the illuminances produced on Screen 1 or 2
(or mirrored about the VV Line for left-hand traffic) shall meet the following requirements:
Note: In the table:
Letter L means that the point or segment is located on the left of VV Line.
Letter R means that the point or segment is located on the right of VV Line.
Letter U means the point or segment is located above HH Line.
Letter D means the point or segment is located below HH Line.

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 illumination produced on the screen by 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 illumination 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) or Regulation No. 99.
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. The illumination produced on the screen by the driving beam shall meet the following
requirements:
6.3.3.1. The point of intersection (HV) of the Lines HH and VV shall be situated within the isolux
representing 80% of the maximum illuminance. This maximum illuminance, hereunder
designated as E , shall lie between 70 and 345 lux.
6.3.3.2. The reference mark referred to in Paragraph 4.2.2.7. above shall be obtained by means of
the formula:
Reference mark = 0.146 E
This value shall be rounded off to the value: 17.5 - 20 - 25 - 27.5 - 30 - 37.5 - 40.
6.3.3.3. Starting from Point HV, horizontally to the right and left, the illuminance shall be not less
than 40 lux up to a distance of 1.125 m and not less than 10 lux up to a distance of 2.25 m.
6.4. The screen illuminance values mentioned in Paragraphs 6.2.5. to 6.3.2.3. above shall be
measured by means of a photo-receptor, the effective area of which shall be contained
within a square of 65 mm side.

9. CONFORMITY OF PRODUCTION
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.
9.2. In order to verify that the requirements of Paragraph 9.1. are met, suitable controls of the
production shall be carried out.
9.3. The holder of the approval shall in particular:
9.3.1. ensure the existence of procedures for the effective control of the quality of products:
9.3.2. have access to the control equipment necessary for checking the conformity to each
approved type;
9.3.3. 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;
9.3.4. 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;
9.3.5. ensure that for each type of product at least the tests prescribed in Annex 8 to this
Regulation are carried out;
9.3.6. ensure that any collecting of samples 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.
9.4. The competent authority which has granted type approval may at any time verify the
conformity control methods applicable to each production unit.
9.4.1. In every inspection, the test books and production survey records shall be presented to the
visiting inspector.
9.4.2. The inspector may take samples at random to be tested in the manufacturer's
laboratory. The minimum number of samples may be determined in the light of results of
the manufacturer's own checks.
9.4.3. When the quality level appears unsatisfactory or when it seems necessary to verify the
validity of the tests carried out in the application of Paragraph 9.4.2. above, the inspector
shall select samples, to be sent to the technical service which has conducted the type
approval tests, using the criteria of Annex 9.
9.4.4. The competent authority may carry out any test prescribed in this Regulation. These tests
will be on samples selected at random without causing distortion of the manufacturer's
delivery commitments and in accordance with the criteria of Annex 9.
9.4.5. The competent authority shall strive to obtain a frequency of inspection of once every two
years. However, this is at the discretion of the competent authority and their confidence in
the arrangements for ensuring effective control of the conformity of production. In the case
where negative results are recorded, the competent authority shall ensure that all necessary
steps are taken to re-establish the conformity of production as rapidly as possible.

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 DEFINITELY DISCONTINUED
of a type of headlamp or of a distributed lighting system pursuant to Regulation No. 98
Approval No .................................................. Extension No .................................
1. Trade name or mark of the headlamp or distributed lighting system:........................................
2. Manufacturer's name for the type of device or system: .............................................................
3. Manufacturer's name and address: ...........................................................................................
4. If applicable, name and address of the manufacturer's representative: ....................................
...................................................................................................................................................
5. Submitted for approval on:.........................................................................................................
6. Technical service responsible for conducting approval tests: ...................................................
...................................................................................................................................................
7. Date of test report: .....................................................................................................................
8. Number of test report: ................................................................................................................

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 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:
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 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.
Figure 10
The approval marking shown above identifies a distributed lighting system using a gas-discharge light
source and meeting the requirements of this Regulation with respect to both the passing beam and the
driving beam for both traffic systems.

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 86,250 and 101,250 candelas
(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
Figure A: Measuring Screen 1
Dimensions are in cm on a flat vertical screen at 25 m. The HH and VV Lines are the intersections with this screen of the horizontal and vertical planes passing
through the axis of reference of the passing beam as declared by the applicant. The above screen describes a right-hand traffic passing beam. The screen for
left-hand traffic passing beam is mirrored about the VV Line. Angle HVH2 - HH - 15°,

Figure C: Measuring Points for Illumination Values

1.1. Clean Headlamp
The headlamp shall be operated for 12 hours as described in sub-paragraph 1.1.1. and
checked as prescribed in sub-paragraph 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
time, the test shall be carried out in accordance with this condition, activating
specified function successively for half the time specified in Paragraph 1.1.,
at a
each
In all other cases,
specified is reached:
the headlamp shall be subjected to the following cycle until the time
15 minutes, passing beam lit
5 minutes, 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:
15 minutes, passing beam lit
5 minutes, 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 1 minute, and switched off for
9 minutes 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:
50 R ― B 50 L ― HV for headlamps designed for right-hand traffic
50 L ― B 50 R ― HV for headlamps designed for left-hand traffic.
Driving beam: Point of E .
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).
A 10% discrepancy between the photometric characteristics and the values measured prior
to the test is permissible including the tolerances of the photometric procedure.
1.2. Dirty Headlamp
After being tested as specified in sub-paragraph 1.1. above, the headlamp shall be operated
for one hour as described in sub-paragraph 1.1.1., after being prepared as prescribed in
sub-paragraph 1.2.1., and checked as prescribed in sub-paragraph 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 0-100 µm,
1 part by weight of vegetal carbon dust (beechwood) with a particle size of 0-100 µm,
0.2 parts by weight of NaCMC and
an appropriate quantity of distilled water, with a conductivity of ≤ 1 mS/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
15 hours, 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 B 50 L for
right-hand traffic or B 50 R for left-hand traffic) shall be verified 3 minutes (r ) and
60 minutes (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 Δ r = | r ― r | recorded on the headlamp is not
more than 1.0 mrad (Δ r ≤ 1.0 mrad).
2.2.2. However, if this value is more than 1.0 mrad but not more than 1.5 mrad
(1.0 mrad < Δ r ≤ 1.5 mrad), a second headlamp shall be tested as described in
Paragraph 2.1., after being subjected three consecutive times to the cycle as described
below, in order to stabilize the position of mechanical parts of the headlamp on a base
representative of the correct installation on the vehicle:
Operation of the passing beam for one hour (the voltage shall be adjusted as specified in
Paragraph 1.1.1.2.);
Period of rest for one hour.
The headlamp type shall be considered as acceptable if the mean value of the absolute
values Δ r measured on the first sample and Δ r measured on the second sample is not
more than 1.0 mrad.
⎛ Δr


+ Δr
2

≤ 1.0 mrad⎟


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 four
hours.
Note: The periods of one hour 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:
B 50 L and 50 R for the passing beam of a passing lamp or a passing/driving lamp (B 50 R
and 50 L in the case of headlamps intended for left-hand traffic);
E for the driving beam of a driving lamp or a passing/driving lamp.
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
295 nm and greater than 2 500 nm. The samples shall be exposed to an energetic
illumination of 1 200 W/m ± 200 W/m for a period such that the luminous energy that they
receive is equal to 4 500 MJ/m ± 200 MJ/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 5 min .
The samples shall be sprayed with distilled water of conductivity lower than 1 mS/m at a
temperature of 23°C ± 5°C, in accordance with the following cycle:
Spraying:
Drying :
5 minutes;
25 minutes.

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 1,500 hours 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 by more than 30% the maximum values
prescribed at Points B 50 L and HV and not be more than 10% below the minimum values
prescribed at Point 75 R (in the case of headlamps intended for left-hand traffic, the points
to be considered are B 50 R, HV and 75 L).
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)
Tests
2.1. Deterioration
(Paragraph 2.6.1.1.)
2.2. Photometry
(Paragraph 2.6.1.2.)
2.3. Adherence
(Paragraph 2.6.2.)
Complete headlamp
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 24 hours in the
specified atmosphere (see Paragraph 3 above).
Five test pieces each 400 mm 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
300 mm/s, then apply them within 15 seconds 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 10 minutes.
Unstick about 25 mm 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 300 mm/s ± 30 mm/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 24 Volts network system.

1.2.2.2. and if, for the driving beam, HV being situated within the isolux line 0.75 E , a tolerance of
+ 20% for maximum values and -20% for minimum values is observed for the photometric
values at any measuring point specified in Paragraph 6.3. of this Regulation.
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 1.5 mrad.
If this value exceeds 1.5 mrad but is not more than 2.0 mrad, a second headlamp shall be
subjected to the test after which the mean of the absolute values recorded on both samples
shall not exceed 1.5 mrad.
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 13.5 V ± 0.1 V or as otherwise specified and:
either
or
equipped with a removable 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.
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:
B 50 L (or R): 0.20 lx equivalent 20%
0.30 lx equivalent 30%
On Line H/H2
(or Line H/H3/H4)
and above: 0.30 lx equivalent 20%
0.45 lx equivalent 30%
1.2.2.1. for the passing beam, the values prescribed in this Regulation are met at HV (with a
tolerance of + 0.2 lx) and related to that aiming at one point of each area delimited on the
measuring screen (at 25 m) by a circle of 15 cm in radius around Points B 50 L (or R)
(with a tolerance of 0.1 lx), 75 R (or L), 50 V, 25 R1, 25 L2, and on Segment I;

2.1.1.2. Sample B
B1: both headlamps 0%
2.1.2. or if the conditions of Paragraph 1.2.2. for Sample A are fulfilled.
2.2. The Conformity is Contested
2.2.1. Following the sampling procedure shown in Figure l of this Annex the conformity of
mass-produced headlamps shall be contested and the manufacturer requested to make his
production meet the requirements (alignment) if the deviations of the measured values of
the headlamps are:
2.2.1.1. Sample A
2.2.1.2. Sample B
A3:
one headlamp not more than
20%
one headlamp more than
20%
but not more than
30%
B2:
in the case of A2
one headlamp more than
0%
but not more than
20%
one headlamp not more than
20%
B3:
in the case of A2
one headlamp
0%
one headlamp more than
20%
but not more than
30%
2.2.2. or if the conditions of Paragraph 1.2.2. for Sample A are not fulfilled.
2.3. Approval withdrawn
2.3.1. Sample A
Conformity shall be contested and Paragraph 10 applied if, following the sampling
procedure in Figure 1 of this Annex, the deviations of the measured values of the
headlamps are:
A4:
one headlamp not more than
20%
one headlamp more than
30%
A5: both headlamps more than 20%

3.2. The Conformity is Contested
3.2.1. Following the sampling procedure shown in Figure 1 of this Annex the conformity of
mass-produced headlamps shall be contested and the manufacturer requested to make his
production meet the requirements (alignment) if the deviations of the measured values of
the headlamps are:
3.2.1.1. Sample D
D2:
in the case of C2
one headlamp more than
0%
but not more than
20%
one headlamp not more than
20%
3.2.1.2. or if the conditions of Paragraph 1.2.2. for Sample C are not fulfilled:
3.3. Approval Withdrawn
3.3.1. Sample C
3.3.2. Sample D
Conformity shall be contested and Paragraph 11 applied if, following the sampling
procedure in Figure 1 of this Annex, the deviations of the measured values of the
headlamps are:
C3:
one headlamp not more than
20%
one headlamp more than
20%
C4: both headlamps more than 20%
D3:
in the case of C2
one headlamp 0 or more than
0%
one headlamp more than
20%
3.3.3. or if the conditions of Paragraph 1.2.2. for Samples C and D are not fulfilled.
4. CHANGE OF THE VERTICAL POSITION OF THE CUT-OFF LINE
With respect to the verification of the change in vertical positions of the cut-off line under the
influence of heat, the following procedure shall be applied:
One of the headlamps of Sample A after sampling procedure in Figure 1 of this Annex 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 does not exceed 1.5 mrad.

Figure 1

2.3. Linearity
The part of the horizontal "cut-off" that serves for vertical adjustment shall be horizontal
between 1.5° and 3.5° from the V-V line (see Figure 1 below).
(a) The inflection points of the "cut-off" gradient at the vertical lines at 1.5°, 2.5° and 3.5°
shall be determined by the equation:
(d (log E)/dβ = 0).
(b)
The maximum vertical distance between the inflection points determined shall not
exceed 0.2°.
3. VERTICAL AND HORIZONTAL AJDUSTMENT
If the "cut-off" complies with the quality requirements of Paragraph 2. of this Annex the
beam adjustment may be performed instrumentally.
Note:
The scales are different for vertical and horizontal lines.
Figure 1
Measurement of "cut-off" Quality

(b)
The "3 line" method (see Figure 3 below)
Three vertical lines shall be scanned from 2° D to 2° U at 1° R, 2° R, and 3° R after the lamp
has been aimed vertically. The respective maximum gradients "G" determined using the
formula:
G = (log E − log E )
where β is the vertical position in degrees, shall not be less than 0.08. The inflection points
found on the three lines shall be used to derive a straight line.
The intersection of this line and the Line B found while performing vertical aim shall be
placed on the V line.
Note:
The scales are different for vertical and horizontal lines.
Figure 3
Instrumental Vertical and Horizontal Adjustment-Three Line Scan Method

3.2.2. Ambient Temperature
3.3. Ageing
For the measurement of electrical and photometric characteristics, the headlamp shall be
operated in dry and still atmosphere at an ambient temperature of 23°C ± 5°C.
Upon the request of the applicant the LED module shall be operated for 15 h and cooled
down to ambient temperature before starting the tests as specified in this Regulation.
4. SPECIFIC REQUIREMENTS AND TESTS
4.1. UV-radiation
The UV-radiation of a LED module shall be such that:
k
=
k
∫ E
∫ E
( λ) S( λ)

( λ) V( λ)

≤ 10
W / lm
where:
S(λ)(unit: l) is the spectral weighting function;
k = 683 lm/W is the maximum value of the luminous efficacy of radiation.
(For definitions of the other symbols see Paragraph 4.1.1. of Annex 9 to Regulation
No. 112).
This value shall be calculated using intervals of one nanometer. The UV-radiation shall be
weighted according to the values as indicated in the Table UV below:
λ
S(λ)
λ
S(λ)
λ
S(λ)
250
0.430
305
0.060
355
0.000 16
255
0.520
310
0.015
360
0.000 13
260
0.650
315
0.003
365
0.000 11
265
0.810
320
0.001
370
0.000 09
270
1.000
325
0.000 50
375
0.000 077
275
0.960
330
0.000 41
380
0.000 064
280
0.880
335
0.000 34
385
0.000 530
285
0.770
340
0.000 28
390
0.000 044
290
0.640
345
0.000 24
395
0.000 036
295
0.540
350
0.000 20
400
0.000 030
300
0.300
Table UV: Values according to "IRPA/INIRC Guidelines on limits of exposure to ultraviolet
radiation". Wavelengths (in nanometres) chosen are representative; other values should be
interpolated.
Headlamps - Gas Discharge Lamp Units.