Regulation No. 91-00

Name:Regulation No. 91-00
Description:Side Marker Lamps.
Official Title:Uniform Provisions Concerning the Approval of: Side-marker Lamps for Motor Vehicles and their Trailers.
Country:ECE - United Nations
Date of Issue:1993-07-15
Amendment Level:00 Series, Corrigendum 1, Revision 3
Number of Pages:31
Vehicle Types:Agricultural Tractor, Bus, Car, Component, Heavy Truck, Light Truck, Trailer
Subject Categories:Lighting and Light Signalling Equipment
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Keywords:

regulation, approval, lamp, light, side-marker, lamps, type, supplement, source, force, date, entry, amendments, series, original, annex, approved, requirements, version, case, conformity, minimum, applying, intensity, production, accordance, granted, contracting, form, manufacturer, paragraph, number, sources, photometric, mark, tests, parties, device, control, side, module, reference, test, luminous, marker, part, equipped, filament, direction, authority

Text Extract:

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E/ECE/324
March 13, 2015
) Rev.1/Add.90/Rev.3/Corr.1
STATUS OF UNITED NATIONS REGULATION
ECE 91-00
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF:
SIDE-MARKER LAMPS FOR MOTOR VEHICLES AND THEIR TRAILERS
Incorporating:
00 series of amendments
Date of Entry into Force: 15.10.93
Supplement 1 to the 00 series of amendments
Date of Entry into Force: 15.02.96
Supplement 2 to the 00 series of amendments
Date of Entry into Force: 21.09.97
Supplement 3 to the 00 series of amendments
Date of Entry into Force: 29.12.00
Supplement 4 to the 00 series of amendments
Date of Entry into Force: 12.08.02
Corr. 1 to Supplement 4 to the 00 series of amendments
Dated: 12.11.03
Supplement 5 to the 00 series of amendments
Date of Entry into Force: 16.07.03
Supplement 6 to the 00 series of amendments
Date of Entry into Force: 27.02.04
Corr. 1 to Supplement 6 to the 00 series of amendments
Dated: 27.02.04
Supplement 7 to the 00 series of amendments
Date of Entry into Force: 23.06.05
Supplement 8 to the 00 series of amendments
Date of Entry into Force: 04.07.06
Supplement 9 to the 00 series of amendments
Date of Entry into Force: 02.02.07
Supplement 10 to the 00 series of amendments
Date of Entry into Force: 11.07.08
Supplement 11 to the 00 series of amendments
Date of Entry into Force: 15.10.08
Supplement 12 to the 00 series of amendments
Date of Entry into Force: 09.12.10
Supplement 13 to the 00 series of amendments
Date of Entry into Force: 23.06.11
Supplement 14 to the 00 series of amendments
Date of Entry into Force: 15.07.13
Supplement 15 to the 00 series of amendments (Revision 3)
Date of Entry into Force: 03.11.13
Corr. 1 to Revision 3 of the Regulation
Dated: 13.03.15

REGULATION
REGULATION NO. 91
UNIFORM PROVISIONS CONCERNING THE APPROVAL OF
SIDE-MARKER LAMPS FOR MOTOR VEHICLES AND THEIR TRAILERS
CONTENTS
1.
Scope
2.
Definitions
3.
Application for approval
4.
Markings
5.
Approval
6.
General specifications
7.
Intensity of light emitted
8.
Colour of light emitted
9.
Test procedure
10.
Modification of a side-marker lamp type and extension of approval
11.
Conformity of production
12.
Penalties for non-conformity of production
13.
Production definitively discontinued
14.
Names and addresses of Technical Services responsible for conducting approval tests, and of
Type Approval Authorities
15.
Transitional provisions
ANNEXES
Annex 1
– Minimum angles required for light distribution in space
Annex 2 – Communication concerning the approval or refusal or extension or withdrawal of approval
or production definitely discontinued of a type of side-marker lamp marked SM1/SM2
Annex 3
Annex 4
Annex 5
Annex 6
– Examples of arrangements of the approval marks
– Photometric measurements
– Minimum requirements for conformity of production control procedures
– Minimum requirements for sampling by an inspector

3.2. For each type of side-marker lamp the application shall be accompanied by:
3.2.1. Drawings in triplicate, sufficiently detailed to permit identification of the type of lamp and
showing geometrically in what position(s) it may be mounted on the vehicle; the axis of
observation to be taken as the axis of reference in the tests (horizontal angle H = 0°, vertical
angle V = 0°) the point to be taken as the centre of reference in the said tests; the vertical
and horizontal tangents to the illuminating surface and their distances from the centre of
reference of the lamp. The drawings shall show the position intended for the approval
number and the additional symbols in relation to the circle of the approval mark.
3.2.2. A brief technical description stating, in particular, with the exception of lamps with
non-replaceable light sources:
(a)
(b)
(c)
The category or categories of filament lamp(s) prescribed; this filament lamp category
shall be one of those contained in Regulation No. 37 and its series of amendments in
force at the time of application for type approval; and/or
The category or categories of LED light source(s) prescribed; this LED light source
category shall be one of those contained in Regulation No. 128 and its series of
amendments in force at the time of application for type approval; and/or
The light source module specific identification code.
3.2.3. Two samples; if the application is made for side-marker lamps which are not identical but
are symmetrical and suitable for mounting one on the left and one on the right side of the
vehicle and/or, alternatively, one towards the front and one towards the rear, the two
samples submitted may be identical and be suitable for mounting only on the right or only on
the left side of the vehicle and/or, alternatively, only towards the front or only towards the
rear.
4. MARKINGS
4.1. Side-marker lamps submitted for approval:
4.2. Must bear the trade name or mark of the applicant; this marking must be clearly legible and
indelible;
4.3. With the exception of lamps with non-replaceable light sources must bear a clearly legible
and indelible marking indicating:
(a)
(b)
The category or categories of light source(s) prescribed; and/or
The light source module specific identification code.
4.4. Must comprise a space of sufficient size for the approval marking and the additional
symbols prescribed in Paragraph 5.4. below; this space shall be shown in the drawings
mentioned in Paragraph 3.2.1. above;
4.5. In the case of lamps with non-replaceable light sources or light source module(s), shall bear
the marking of rated voltage or the range of voltages, and the rated wattage.

5.5. The marks and symbols mentioned in Paragraphs 5.4.1. to 5.4.3. above shall be indelible
and clearly legible even when the device is mounted on the vehicle.
5.6. Where grouped, combined or reciprocally incorporated lamps have been found to comply
with the requirements of several Regulations, a single international approval mark may be
applied provided that such lamps are not grouped, combined or reciprocally incorporated
with a lamp or lamps not satisfying any one of those Regulations.
5.6.1. The approval mark shall consist of a circle surrounding the Letter "E" followed by the
distinguishing number of the country which has granted the approval; an approval mark may
be located anywhere on the grouped, combined or reciprocally incorporated lamps provided
that:
5.6.1.1. It is visible after their installation;
5.6.1.2. No part of the grouped, combined or reciprocally incorporated lamps that transmits light can
be removed without at the same time removing the approval mark.
5.7. 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 Regulation at the time of
issue of approval shall be marked;
5.7.1. Either on the appropriate light-emitting surface, or
5.7.2. In a group, in such a way that each lamp may be clearly identified (see three possible
models in Example 2 shown in Annex 3).
5.8. The size of the components of a single approval mark shall not be less than the minimum
size required for the smallest of the individual marks under which the approval was granted.
5.9. An approval number shall be assigned to each type approved. The same Contracting Party
shall not assign the same number to another type of assembly covered by this Regulation.
5.10. Annex 3 to this Regulation gives examples of arrangements of approval marks for a single
lamp (Example 1) and for an assembly (Example 2).
5.11. Lamps grouped with a type of headlamp of which the lens is also used for another type of
headlamp. The provisions laid down in Paragraphs 5.6. to 5.9. above are applicable.
5.11.1. However, if different types of headlamps or units of lamps including a headlamp comprise
the same lens, the latter may bear the different approval marks relating to these types of
headlamps or units of lamps, provided that the main body of the headlamp, even if it cannot
be separated from the lens, bears the approval marks of the actual functions. If different
types of headlamps comprise the same main body, the latter may bear the different
approval marks.
5.11.2. Annex 3 to this Regulation gives examples of approval marks relating to lamps which are
grouped with a headlamp (Example 3).

7.
INTENSITY OF LIGHT EMITTED
7.1.
The intensity of the light emitted by each of the two samples submitted shall be:
Side-marker lamp category
SM1
SM2
7.1.1.
Minimum intensity
In the axis of reference
4.0cd
0.6cd
Within the specified angular field, other than above
0.6cd
0.6cd
7.1.2.
Maximum intensity
Within the specified angular field
25.0cd
25.0cd
7.1.3.
Angular field
Horizontal
±45°
±30°
Vertical
±10°
±10°
7.1.4. In the case of a lamp containing more than one light source:
The lamp shall comply with the minimum intensity required when any one light source has
failed;
When all light sources are illuminated the maximum intensity specified may not be
exceeded.
All light sources which are connected in series are considered to be one light source.
7.2. Outside the reference axis and within the angular fields defined in the diagrams in Annex 1
to this Regulation, the intensity of the light emitted by each of the two side-marker lamps
supplied must:
7.2.1. In each direction corresponding to the points in the light distribution table reproduced in
Annex 4 to this Regulation, be not less than the product of the minimum specified in
Paragraph 7.1. above by the percentage specified in the said table for the direction in
question;
7.2.2. In no direction within the space from which the side-marker lamp is visible, exceed the
maximum specified in Paragraph 7.1. above;
7.2.3. The provisions of Paragraph 2.2. of Annex 4 to this Regulation on local variations of
intensity must be observed.
7.3. Annex 4, to which reference is made in Paragraph 7.2.1. above, gives particulars of the
measurement methods to be used.

10. MODIFICATION OF SIDE-MARKER LAMP TYPE AND EXTENSION OF APPROVAL
10.1. Any modification of a side-marker lamp type shall be notified to the administrative authority
which approved the lamp. The authority may then either:
10.1.1. Consider that the modifications are unlikely to have an appreciable adverse effect and that,
in any case, the side-marker lamp still meets the requirements; or
10.1.2. Require a further test report from the Technical Service responsible for conducting the tests.
10.2. Confirmation or refusal of approval, specifying the alterations, shall be communicated by the
procedure specified in Paragraph 5.3. above to the Parties to the Agreement which apply
this Regulation.
10.3. The Type Approval 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
Parties to the Agreement applying this Regulation by means of a communication form
conforming to the model in Annex 2 to this Regulation.
11. CONFORMITY OF PRODUCTION
The conformity of production procedures shall comply with those set out in the Agreement,
Appendix 2 (E/ECE/324-E/ECE/TRANS/505/Rev.2), with the following requirements:
11.1. Any side-marker lamp approved according to this Regulation shall be so manufactured as to
conform to the type approved by meeting the requirements set forth in Paragraphs 7. and 8.
above.
11.2. The minimum requirements for conformity of production control procedures set forth in
Annex 5 to this Regulation shall be complied with.
11.3. The minimum requirements for sampling by an inspector set forth in Annex 6 to this
Regulation shall be complied with.
11.4. The Type Approval Authority which has granted type approval may at any time verify the
conformity control methods applied in each production facility. The normal frequency of
these verifications shall be once every two years.
12. PENALTIES FOR NON-CONFORMITY OF PRODUCTION
12.1. The approval granted in respect of a side-marker lamp may be withdrawn if the foregoing
conditions are not satisfied.
12.2. If a Party to the Agreement applying this Regulation withdraws an approval it has previously
granted, it shall forthwith so notify the other Contracting Parties applying this Regulation, by
means of a communication form conforming to the model in Annex 2 to this Regulation.
13. PRODUCTION DEFINITIVELY DISCONTINUED
If the holder of an approval completely ceases to manufacture a side-marker lamp approved
in accordance with this Regulation, he shall so inform the Type Approval Authority which
granted the approval. Upon receiving the relevant communication, that Authority shall inform
the other Parties to the Agreement applying this Regulation, by means of a communication
form conforming to the model in Annex 2 to this Regulation.

15.10. As from the official date of entry into force of Supplement 3 of the original version of the
Regulation, no Contracting Party applying this Regulation shall prohibit the fitting on a
vehicle of a side marker lamp approved under this Regulation as amended by Supplement 3
of the original version of the Regulation.
15.11. Contracting Parties applying this Regulation shall continue to allow the fitting on a vehicle of
a side marker lamp approved to this Regulation in its original form and the subsequent
supplements during the 48 months period which follows the date of entry into force of
Supplement 3 of the original version of the Regulation.
15.12. Upon the expiration of a period of 48 months after the date of entry into force of
Supplement 3 of the original version of the Regulation, Contracting Parties applying this
Regulation may prohibit the fitting of a side marker lamp which does not meet the
requirements of this Regulation as amended by Supplement 3 of the original version of the
Regulation on a new vehicle for which national type or individual approval was granted more
than 24 months after the date of entry into force of Supplement 3 of the original version of
the Regulation.
15.13. Upon the expiration of a period of 60 months after the date of entry into force, Contracting
Parties applying this Regulation may prohibit the fitting of a side marker lamp which does
not meet the requirements of this Regulation as amended by Supplement 3 of the original
version of the Regulation on a new vehicle first registered more than 60 months after the
date of entry into force of Supplement 3 of the original version of the Regulation.

Minimum horizontal angles, SM2:

9. Concise description:
Colour of light emitted: amber/red
Number and category(ies) of light source(s): ......................................................................................
Light source module: .............................................................................................................. yes/no
Light source module specific identification code: ................................................................................
Only for limited mounting height equal to or less than 750mm above the ground: yes/no
Geometric conditions of installation and relating variations, if any: ....................................................
Application of an electronic light source control gear/variable intensity control:
(a) Being part of the lamp: yes/no/not applicable
(b) Being not part of the lamp: yes/no/not applicable
Input voltage(s) supplied by an electronic light source control gear/variable intensity control: ..........
Electronic light source control gear/variable intensity control manufacturer and identification
number (when the light source control gear is part of the lamp but is not included into the lamp
body): ...................................................................................................................................................
10. Position of the approval mark: .............................................................................................................
11. Reason(s) for extension (if applicable): ...............................................................................................
12. Approval granted/refused/extended/withdrawn: ..............................................................................
13. Place: ...................................................................................................................................................
14. Date: ....................................................................................................................................................
15. Signature: ............................................................................................................................................
16. The list of documents deposited with the Type Approval Authority which has granted approval is
annexed to this communication and may be obtained on request.

Example 2
Simplified Marking for an Assembly of Several Lamps
that are Part of the Same Unit
Model A
Model B
Model C
Note:
The three examples of approval mark, Models A, B and C represent three possible variants of
marking of a light-signalling device when two or more lamps are part of the same unit of
grouped, combined or reciprocally incorporated lamps.
The approval mark shows that the device was approved in the Netherlands (E4) under 3333
and comprises:
A rear and a side retro-reflector of Class IA approved in accordance with Regulation No. 3,
02 series of amendments;

The main body of the headlamp shall bear the only valid approval number, for instance:
Example 4
Light Source Modules
MD E3 17325
The light source module bearing the identification code shown above has been approved together with a
lamp approved in Italy (E3) under approval number 17325.

2.2 SM2 category of side-marker lamps
2.2.1 Minimum values:
0.6cd, at any point
2.2.2 Maximum values:
25.0cd, at any point
2.3 For SM1 and SM2 category of side-marker lamps it may be sufficient to check only five
points selected by the Type Approval Authority.
2.4 Within the field of light distribution shown above as a grid the light pattern should be
substantially uniform, i.e. the light intensity in every direction within a part of the field formed
by the grid lines shall meet at least the lowest minimum value applicable to the respective
grid lines.
2.5. However in the case where a device is intended to be installed with its H plane at a
mounting height less than 750mm above the ground, the photometric intensity is verified
only up to an angle of 5° downwards.
3. PHOTOMETRIC MEASUREMENT OF LAMPS
The photometric performance shall be checked:
3.1 For non-replaceable light sources (filament lamps and other): with the light sources present
in the lamp, in accordance with the relevant subparagraph of Paragraph 9.1. of this
Regulation.

ANNEX 5
MINIMUM REQUIREMENTS FOR CONFORMITY OF PRODUCTION CONTROL PROCEDURES
1. GENERAL
1.1. The conformity requirements shall be considered satisfied from a mechanical and geometric
standpoint, if the differences do not exceed inevitable manufacturing deviations within the
requirements of this Regulation.
1.2. With respect to photometric performances, the conformity of mass-produced side-marker
lamps shall not be contested if, when testing photometric performances of any side-marker
lamp chosen at random and equipped with a standard light source, or when the side-marker
lamps are equipped with non-replaceable light sources (filament lamps or other), and when
all measurements are made at 6.75V, 13.5V or 28.0V respectively:
1.2.1. No measured value deviates unfavourably by more than 20% from the values prescribed in
this Regulation.
1.2.2. If, in the case of a side-marker lamp equipped with a replaceable light source and if results
of the test described above do not meet the requirements, tests on side-marker lamps shall
be repeated using another standard light source.
1.3. The chromaticity co-ordinates shall be complied with when the side-marker lamp is
equipped with a standard light source, or for lamps equipped with non-replaceable light
sources (filament lamps or other), when the colorimetric characteristics are verified with the
light source present in the side-marker lamp.
2. MINIMUM REQUIREMENTS FOR VERIFICATION OF CONFORMITY BY THE
MANUFACTURER
For each type of side-marker lamp 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 regard 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 and colorimetric
characteristics.
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.
2.2.2. In any test of conformity carried out by the manufacturer, equivalent methods may be used
with the consent of the Type Approval Authority responsible for approval tests. The
manufacturer is responsible for proving that the applied methods are equivalent to those laid
down in this Regulation.

ANNEX 6
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 side-marker
lamps shall not be contested if, when testing photometric performances of any side-marker
lamp chosen at random and equipped with a standard light source, or when the side-marker
lamps are equipped with non-replaceable light sources (filament lamps or other), and when
all measurements are made at 6.75V, 13.5V or 28.0V respectively:
1.2.1. No measured value deviates unfavourably by more than 20% from the values prescribed in
this Regulation.
1.2.2. If, in the case of a side-marker lamp equipped with a replaceable light source and if results
of the test described above do not meet the requirements, tests on side-marker lamps shall
be repeated using another standard light source.
1.2.3. Side-marker lamps with apparent defects are disregarded.
1.3. The chromaticity co-ordinates shall be complied with when the side-marker lamp is
equipped with a standard light source, or for side-marker lamps equipped with
non-replaceable light sources (filament lamps or other), when the colorimetric
characteristics are verified with the light source present in the side-marker lamp.
2. FIRST SAMPLING
In the first sampling four side-marker lamps are selected at random. The first sample of two
is marked A, the second sample of two is marked B.
2.1. The Conformity is not Contested
2.1.1. Following the sampling procedure in Figure 1 of this Annex the conformity of
mass-produced side-marker lamps shall not be contested if the deviation of the measured
values of the side-marker lamps in the unfavourable directions are:
2.1.1.1. Sample A
A1:
one side-marker lamp
0%
one side-marker lamp not more than
20%
A2:
both side-marker lamps more than
0%
but not more than
20%
go to Sample B

2.3.2. Sample B
B4:
in the case of A2
one side-marker lamp more than
0%
but not more than
20%
one side-marker lamp more than
20%
B5: in the case of A2
both side-marker lamps more than 20%
B6:
in the case of A2
one side-marker lamp
0%
one side-marker lamp more than
30%
2.3.3. or, if the conditions of Paragraph 1.2.2. for Samples A and B are not fulfilled.
3. REPEATED SAMPLING
In the cases of A3, B2, B3 a repeated sampling, third Sample C of two side-marker lamps
and fourth Sample D of two side-marker lamps, selected from stock manufactured after
alignment, is necessary within two months' time after the notification.
3.1. The Conformity is not Contested
3.1.1. Following the sampling procedure shown in Figure 1 of this Annex the conformity of
mass-produced side-marker lamps shall not be contested if the deviations of the measured
values of the side-marker lamps are:
3.1.1.1. Sample C
3.1.1.2. Sample D
C1:
one side-marker lamp
0%
one side-marker lamp not more than
20%
C2:
both side-marker lamps more than
0%
but not more than
20%
go to Sample D
D1: in the case of C2
both side-marker lamps 0%
3.1.2. or, if the conditions of Paragraph 1.2.2. for Sample C are fulfilled

Figure 1
Side Marker Lamps.